libgit2/libgit2 — pull request #905 by carlosmn (2012-08-28 16:09:48+00:00)
Title: signature: make the OS give us the offset for git_signature_now

There is a better and less fragile way to calculate time offsets. Let
the OS take care of dealing with DST and simply take the the offset
between the local time and UTC that it gives us.