[PATCH 2/6] Documentation/config: mention "now" and "never" for 'expire' settings

[Eric Sunshine <sunshine@sunshineco.com>]

In addition to approxidate-style values ("2.months.ago", "yesterday"),
consumers of 'gc.*expire*' configuration variables also accept and
respect 'now'/'all' ("do it immediately") and 'never'/'false' ("suppress
entirely").

Suggested-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---

Reference: http://article.gmane.org/gmane.comp.version-control.git/274325

I sneaked in a minor whitespace fix.

 Documentation/config.txt | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 1a8a399..cc920c0 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1307,20 +1307,22 @@ gc.packRefs::
 gc.pruneExpire::
 	When 'git gc' is run, it will call 'prune --expire 2.weeks.ago'.
 	Override the grace period with this config variable.  The value
-	"now" may be used to disable this  grace period and always prune
-	unreachable objects immediately.
+	"now" may be used to disable this grace period and always prune
+	unreachable objects immediately; or "never" to suppress pruning.
 
 gc.worktreePruneExpire::
 	When 'git gc' is run, it calls
 	'git worktree prune --expire 3.months.ago'.
 	This config variable can be used to set a different grace
 	period. The value "now" may be used to disable the grace
-	period and prune $GIT_DIR/worktrees immediately.
+	period and prune $GIT_DIR/worktrees immediately; or "never" to
+	suppress pruning.
 
 gc.reflogExpire::
 gc.<pattern>.reflogExpire::
 	'git reflog expire' removes reflog entries older than
-	this time; defaults to 90 days.  With "<pattern>" (e.g.
+	this time; defaults to 90 days. The value "all" expires all
+	entries; and "false" disables expiration. With "<pattern>" (e.g.
 	"refs/stash") in the middle the setting applies only to
 	the refs that match the <pattern>.
 
@@ -1328,7 +1330,8 @@ gc.reflogExpireUnreachable::
 gc.<ref>.reflogExpireUnreachable::
 	'git reflog expire' removes reflog entries older than
 	this time and are not reachable from the current tip;
-	defaults to 30 days.  With "<pattern>" (e.g. "refs/stash")
+	defaults to 30 days. The value "all" expires all entries; and
+	"false" disables expiration. With "<pattern>" (e.g. "refs/stash")
 	in the middle, the setting applies only to the refs that
 	match the <pattern>.
 
-- 
2.5.0.rc3.407.g68aafd0