libgit2/libgit2 — pull request #1920 by carlosmn (2013-10-30 16:29:44+00:00)
Title: Reference operations with log

This is basically @nulltoken 's #1577 but on top of the new reflog API which @vmg wanted to see. We don't need to load the reflog ourselves before writing it back out (though it still happens in the background)