Add a missing close quote in "while building module 'Foo:" diagnostic.

This isn't a real diagnostic kind, only a location note, and this form isn't even
used if the SourceManager can provide a valid presumed location. But still.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@214002 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/DiagnosticRenderer.cpp

@@ -509,6 +509,6 @@ DiagnosticNoteRenderer::emitBuildingModuleLocation(SourceLocation Loc,
     Message << "while building module '" << ModuleName << "' imported from "
             << PLoc.getFilename() << ':' << PLoc.getLine() << ":";
   else
-    Message << "while building module '" << ModuleName << ":";
+    Message << "while building module '" << ModuleName << "':";
   emitNote(Loc, Message.str(), &SM);
 }