git-merge: document the -S option

The option to gpg sign a merge commit is available but was not
documented. Use wording from the git-commit(1) manpage.

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt
index a74c3713c6e60db404cbca5afeeebfe687012f58..439545926ecdcf609c299ca0e5ea44032969c1be 100644 (file)
--- a/Documentation/git-merge.txt
+++ b/Documentation/git-merge.txt
@@ -10,7 +10,7 @@ SYNOPSIS
 --------
 [verse]
 'git merge' [-n] [--stat] [--no-commit] [--squash] [--[no-]edit]
-       [-s <strategy>] [-X <strategy-option>]
+       [-s <strategy>] [-X <strategy-option>] [-S[<keyid>]]
        [--[no-]rerere-autoupdate] [-m <msg>] [<commit>...]
 'git merge' <msg> HEAD <commit>...
 'git merge' --abort
@@ -65,6 +65,10 @@ OPTIONS
 -------
 include::merge-options.txt[]
 
+-S[<keyid>]::
+--gpg-sign[=<keyid>]::
+       GPG-sign the resulting merge commit.
+
 -m <msg>::
        Set the commit message to be used for the merge commit (in
        case one is created).