docs: GDataTime: *_add_*(): Mention that you can subtract.
authorMurray Cumming <murrayc@murrayc.com>
Thu, 31 Oct 2013 12:15:01 +0000 (13:15 +0100)
committerMurray Cumming <murrayc@murrayc.com>
Thu, 31 Oct 2013 12:15:01 +0000 (13:15 +0100)
commit6ed60a936cf4a220519195c456c3eaa5ddec66b4
tree90d99d250092d8b713edfba803087b131a4b64d1
parente2fcb77cb04b4b86768d56d8fccfb36f1a5d9451
docs: GDataTime: *_add_*(): Mention that you can subtract.

Because this was not obvious to at least one person on irc.
glib/gdatetime.c