Rename -rewrite-includes to -frewrite-includes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158458 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Rewrite/InclusionRewriter.cpp b/lib/Rewrite/InclusionRewriter.cpp
index 8fb5a8b..2dd6b34 100644
--- a/lib/Rewrite/InclusionRewriter.cpp
+++ b/lib/Rewrite/InclusionRewriter.cpp
@@ -225,11 +225,11 @@
   do {
     DirectiveLex.LexFromRawLexer(DirectiveToken);
   } while (!DirectiveToken.is(tok::eod) && DirectiveToken.isNot(tok::eof));
-  OS << "#if 0 /* expanded by -rewrite-includes */" << EOL;
+  OS << "#if 0 /* expanded by -frewrite-includes */" << EOL;
   OutputContentUpTo(FromFile, NextToWrite,
     SM.getFileOffset(DirectiveToken.getLocation()) + DirectiveToken.getLength(),
     EOL, Line);
-  OS << "#endif /* expanded by -rewrite-includes */" << EOL;
+  OS << "#endif /* expanded by -frewrite-includes */" << EOL;
 }
 
 /// Find the next identifier in the pragma directive specified by \p RawToken.
@@ -334,7 +334,7 @@
   return true;
 }
 
-/// InclusionRewriterInInput - Implement -rewrite-includes mode.
+/// InclusionRewriterInInput - Implement -frewrite-includes mode.
 void clang::RewriteIncludesInInput(Preprocessor &PP, raw_ostream *OS,
                                    const PreprocessorOutputOptions &Opts) {
   SourceManager &SM = PP.getSourceManager();