PATCH: Add FIXED-IN keyword support to commit messages.

[Oswald Buddenhagen]

On Thu, May 06, 2010 at 06:22:18PM -0400, Michael Pyne wrote:
> That reminds me though, I sometimes will CCBUG on the backport and
> only use the BUG keyword on the trunk commit. Right now I have the
> code so that the FIXED-IN keyword only works on the bugs that are
> actually closed, which wouldn't support that workflow.
> 
i'm trying to simulate a more git-forward-merge-like publication flow
already. that means that i put the BUG into the backport and just
mention the bug informally in the trunk commit.