git-merge: warn when -m provided on a fast forward

diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt
index 6a098df26b1c1639f6ac88233b5642a2be9039fa..b88764f45f9deb6e82f7b3bfb65bacebced5ef16 100644 (file)
--- a/Documentation/git-diff.txt
+++ b/Documentation/git-diff.txt
@@ -8,7 +8,7 @@ git-diff - Show changes between commits, commit and working tree, etc
 
 SYNOPSIS
 --------
-'git-diff' [ --diff-options ] <commit>{0,2} [--] [<path>...]
+'git-diff' [<common diff options>] <commit>{0,2} [--] [<path>...]
 
 DESCRIPTION
 -----------