Per-ref reflog expiry configuration
In addition to gc.reflogexpireunreachable and gc.reflogexpire, this lets
you set gc.<pattern>.reflogexpireunreachable and gc.<pattern>.reflogexpire
variables.
When "git reflog expire" expires reflog entry for $ref, the expiry timers
are taken from the first <pattern> that matches $ref (and if there isn't
the global default value is used).
For example, you could:
[gc "refs/stash"]
reflogexpire = never
reflogexpireunreachable = never
[gc "refs/remotes/*"]
reflogexpire = 7 days
reflogexpireunreachable = 3 days
[gc]
reflogexpire = 90 days
reflogexpireunreachable = 30 days
Signed-off-by: Junio C Hamano <gitster@pobox.com>