Revert "Remove sparse text on diagnostic options. These are not really documented anywhere, and they really aren't for normal users."

I changed my mind.  We should just document these in the man page.

llvm-svn: 174344

clang/docs/tools/clang.pod

@@ -417,6 +417,27 @@ Show commands to run and use verbose output.
 
 =back
 
+
+=head2 Diagnostics Options
+
+=over
+
+=item B<-fshow-column>
+B<-fshow-source-location>
+B<-fcaret-diagnostics>
+B<-fdiagnostics-fixit-info>
+B<-fdiagnostics-parseable-fixits>
+B<-fdiagnostics-print-source-range-info>
+B<-fprint-source-range-info>
+B<-fdiagnostics-show-option>
+B<-fmessage-length>
+
+These options control how Clang prints out information about diagnostics (errors
+and warnings).  Please see the Clang User's Manual for more information.
+
+=back
+
+
 =head2 Preprocessor Options
 
 =over