Additional email headers to include in a patch to be submitted
by mail. See gitlink:git-format-patch[1].
+gc.packrefs::
+ `git gc` does not run `git pack-refs` in a bare repository by
+ default so that older dumb-transport clients can still fetch
+ from the repository. Setting this to `true` lets `git
+ gc` to run `git pack-refs`. Setting this to `false` tells
+ `git gc` never to run `git pack-refs`. The default setting is
+ `notbare`. Enable it only when you know you do not have to
+ support such clients. The default setting will change to `true`
+ at some stage, and setting this to `false` will continue to
+ prevent `git pack-refs` from being run from `git gc`.
+
gc.reflogexpire::
`git reflog expire` removes reflog entries older than
this time; defaults to 90 days.