Documentation cleanup: escaping # characters in Doxygen comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158847 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Frontend/CompilerInvocation.h b/include/clang/Frontend/CompilerInvocation.h
index 19cd5b7..1f9a8ab 100644
--- a/include/clang/Frontend/CompilerInvocation.h
+++ b/include/clang/Frontend/CompilerInvocation.h
@@ -85,10 +85,10 @@
   /// Options controlling the frontend itself.
   FrontendOptions FrontendOpts;
 
-  /// Options controlling the #include directive.
+  /// Options controlling the \#include directive.
   HeaderSearchOptions HeaderSearchOpts;
 
-  /// Options controlling the preprocessor (aside from #include handling).
+  /// Options controlling the preprocessor (aside from \#include handling).
   PreprocessorOptions PreprocessorOpts;
 
   /// Options controlling preprocessed output.