[RFA 00/12] some minor cleanup removals

Tom Tromey
2017-09-28T19:50:20Z

This removes a number of cleanups, generally string related.

I introduced string_vprintf to allow the use of std::string in some of
these patches.

The final patch just removes a couple of unused declarations; I would
have checked it in as obvious, but it was more convenient to just
leave it in this series.

Tom