add # frozen_string_literal: true for models

Change-Id: I70825be7ec7e24458afe0c63dc48c5a76158f520
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/251150
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Simon Williams <simon@instructure.com>
QA-Review: Simon Williams <simon@instructure.com>
Product-Review: Simon Williams <simon@instructure.com>

app/models/abstract_course.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/access_token.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/account.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/account/help_links.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/account/settings.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/account_notification.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/account_notification_role.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/account_report.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/account_report_row.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/account_report_runner.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/account_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/alert.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/alert_criterion.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/alerts/delayed_alert_sender.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/alerts/interaction.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/alerts/ungraded_count.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/alerts/ungraded_timespan.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/alerts/user_note.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/announcement.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/anonymous_or_moderation_event.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/application_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2017 - present Instructure, Inc.
 #

app/models/appointment_group.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2012 - present Instructure, Inc.
 #

app/models/appointment_group_context.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/appointment_group_sub_context.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2012 - present Instructure, Inc.
 #

app/models/assessment_question.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/assessment_question_bank.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/assessment_question_bank_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/assessment_request.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/asset_user_access.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/asset_user_access_log.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/assignment.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/assignment/bulk_update.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/assignment/grade_error.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/assignment/max_graders_reached_error.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/assignment_configuration_tool_lookup.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/assignment_group.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/assignment_override.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2012 - present Instructure, Inc.
 #

app/models/assignment_override_student.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2012 - present Instructure, Inc.
 #

app/models/assignment_student_visibility.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/assignments/needs_grading_count_query.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/assignments/scoped_to_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/attachment.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/attachment_association.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/attachment_upload_status.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Copyright (C) 2019 - present Instructure, Inc.
 #
 # This file is part of Canvas.

app/models/attachments/garbage_collector.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2017 - present Instructure, Inc.
 #

app/models/attachments/local_storage.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/attachments/s3_storage.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/attachments/scoped_to_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/attachments/storage.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2018 - present Instructure, Inc.
 #

app/models/attachments/verification.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/auditors.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/auditors/active_record/attributes.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/authentication_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/course_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/grade_change_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/migration_cell.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/model.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/active_record/partitioner.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/auditors/authentication.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/auditors/course.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/auditors/grade_change.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/auditors/record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider/apple.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #

app/models/authentication_provider/canvas.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/authentication_provider/cas.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider/clever.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/delegated.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/authentication_provider/facebook.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/git_hub.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/google.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/ldap.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #
@@ -85,8 +87,7 @@ class AuthenticationProvider::LDAP < AuthenticationProvider
       "\00" => '\00',
   }.freeze
   def sanitized_ldap_login(login)
-    login.gsub!(/[#{Regexp.escape(LDAP_SANITIZE_MAP.keys.join)}]/, LDAP_SANITIZE_MAP)
-    login
+    login.gsub(/[#{Regexp.escape(LDAP_SANITIZE_MAP.keys.join)}]/, LDAP_SANITIZE_MAP)
   end
 
   def ldap_filter(login = nil)

app/models/authentication_provider/linked_in.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/microsoft.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/authentication_provider/oauth.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider/oauth2.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider/open_id_connect.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/authentication_provider/plugin_settings.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/saml.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/saml/federation.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/authentication_provider/saml/in_common.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/authentication_provider/saml/metadata_refresher.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/authentication_provider/saml/uk_federation.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/authentication_provider/saml_idp_discovery.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/authentication_provider/twitter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/big_blue_button_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/bookmark_service.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/bookmarks.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/bookmarks/bookmark.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/bounce_notification_processor.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/brand_config.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/broadcast_policies/assignment_participants.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/broadcast_policies/assignment_policy.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/broadcast_policies/quiz_submission_policy.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/broadcast_policies/submission_policy.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2013 - present Instructure, Inc.
 #

app/models/broadcast_policies/wiki_page_policy.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2015 - present Instructure, Inc.
 #

app/models/calendar_event.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2011 - present Instructure, Inc.
 #

app/models/canvadoc.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2014 - present Instructure, Inc.
 #

app/models/canvadocs_submission.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2016 - present Instructure, Inc.
 #

app/models/canvas_metadatum.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 #
 # Copyright (C) 2020 - present Instructure, Inc.
 #