[PATCH] git-merge: show usage if run without arguments

[Rene Scharfe <rene.scharfe@xxxxxxxxxxxxxx>]

Signed-off-by: Rene Scharfe <rene.scharfe@xxxxxxxxxxxxxx>

diff --git a/git-merge.sh b/git-merge.sh
index 49c46d5..cb09438 100755
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -93,6 +93,8 @@ finish () {
 	esac
 }
 
+case "$#" in 0) usage ;; esac
+
 rloga=
 while case "$#" in 0) break ;; esac
 do
-
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