t4008: abstract away SHA-1-specific constants

diff --git a/Documentation/git-reflog.txt b/Documentation/git-reflog.txt
index 5e7908e4f705d858dca8483069fd3b89c8f7e31c..472a6808cd60899f4554e998b9fb8e4f3103aac2 100644 (file)
--- a/Documentation/git-reflog.txt
+++ b/Documentation/git-reflog.txt
@@ -20,9 +20,10 @@ depending on the subcommand:
 'git reflog' ['show'] [log-options] [<ref>]
 'git reflog expire' [--expire=<time>] [--expire-unreachable=<time>]
        [--rewrite] [--updateref] [--stale-fix]
-       [--dry-run] [--verbose] [--all | <refs>...]
+       [--dry-run | -n] [--verbose] [--all | <refs>...]
 'git reflog delete' [--rewrite] [--updateref]
-       [--dry-run] [--verbose] ref@\{specifier\}...
+       [--dry-run | -n] [--verbose] ref@\{specifier\}...
+'git reflog exists' <ref>
 
 Reference logs, or "reflogs", record when the tips of branches and
 other references were updated in the local repository. Reflogs are
@@ -52,6 +53,9 @@ argument must be an _exact_ entry (e.g. "`git reflog delete
 master@{2}`"). This subcommand is also typically not used directly by
 end users.
 
+The "exists" subcommand checks whether a ref has a reflog.  It exits
+with zero status if the reflog exists, and non-zero status if it does
+not.
 
 OPTIONS
 -------