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-rw-r--r--shell.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/shell.c b/shell.c
index c5439a63e9..2af80c68bf 100644
--- a/shell.c
+++ b/shell.c
@@ -13,7 +13,7 @@ static int do_generic_cmd(const char *me, char *arg)
const char *my_argv[4];
setup_path();
- if (!arg || !(arg = sq_dequote(arg)))
+ if (!arg || !(arg = sq_dequote(arg)) || *arg == '-')
die("bad argument");
if (!starts_with(me, "git-"))
die("bad command");