submodule-config: fix test binary crashing when no arguments given

Since arg[0] will be NULL without any argument here and starts_with() does not like NULL-pointers. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Heiko Voigt committed Jul 28, 2016 at 14:50 UTC 55cbe18e1146320674968820150126ee34e5d332
1 file changed +1 -1
test-submodule-config.c
+1 -1
@@ -23,7 +23,7 @@ int main(int argc, char **argv)
23
24 arg++;
25 my_argc--;
26 - while (starts_with(arg[0], "--")) {
26 + while (arg[0] && starts_with(arg[0], "--")) {
27 if (!strcmp(arg[0], "--url"))
28 output_url = 1;
29 if (!strcmp(arg[0], "--name"))