Make string literal concatenation play nice with C++11.

In C++11 mode, "foo"MACRO_THAT_EXPANDS_TO_STRING gets lexed as a user
defined literal. Add space around the macro.

Had missed these when resolving merge conflicts last night.

Change-Id: I1a381a06c3909b76a3b44ce79c37aa6f244d3736
1 file changed