Clarify the syntax for git merge.

3b83541f · Travis Cross · 355b4f11 · 3b83541f
--- a/scripts/setup-git.sh
+++ b/scripts/setup-git.sh
@@ -49,7 +49,7 @@ cat 1>&2 <<EOF

    If you really want to merge rather than rebasing, run:

-      git merge [refspec]
+      git merge <commit>

    See 'man git-config' for more information.
 EOF