Handle invalid argc gently

describe, git: Handle argc==0 case the same way as argc==1.
merge-tree: Refuse excessive arguments.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/git.c b/git.c
index 47c85e10d1..8c182a5f55 100644
--- a/git.c
+++ b/git.c
@@ -294,7 +294,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 
 int main(int argc, const char **argv, char **envp)
 {
-	const char *cmd = argv[0];
+	const char *cmd = argv[0] ? argv[0] : "git-help";
 	char *slash = strrchr(cmd, '/');
 	const char *exec_path = NULL;
 	int done_alias = 0;