docs/git-gc: fix typo "--prune=all" to "--prune=now"

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Robert P. J. Day committed Mar 2, 2019 at 03:51 UTC 716a5af812dad5fc0814457a3dc570a73081dcc6
1 file changed +1 -1
Documentation/git-gc.txt
+1 -1
@@ -76,7 +76,7 @@ be performed as well.
76 --prune=<date>::
77 Prune loose objects older than date (default is 2 weeks ago,
78 overridable by the config variable `gc.pruneExpire`).
79 - --prune=all prunes loose objects regardless of their age and
79 + --prune=now prunes loose objects regardless of their age and
80 increases the risk of corruption if another process is writing to
81 the repository concurrently; see "NOTES" below. --prune is on by
82 default.