fix passenger redis connect

Change-Id: I57033b09969beaac8001c147dbdd22b59fea6bcd
Reviewed-on: https://gerrit.instructure.com/13603
Reviewed-by: Zach Wily <zach@instructure.com>
Tested-by: Brian Palmer <brianp@instructure.com>

lib/canvas.rb

@@ -54,7 +54,7 @@ module Canvas
   def self.reconnect_redis
     @redis = nil
     if Rails.cache && Rails.cache.respond_to?(:reconnect)
-      Canvas::Redis.handle_redis_failure(nil) do
+      Canvas::Redis.handle_redis_failure(nil, "none") do
         Rails.cache.reconnect
       end
     end