send-pack: fix parsing of --force-with-lease option

The last argument for parse_push_cas_option() is if it is "unset"
(i.e. --no-force-with-lease), and we are parsing the option with an
explicit value here, so it has to be 0.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/send-pack.c

@@ -183,7 +183,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
 			}
 			if (!prefixcmp(arg, "--" CAS_OPT_NAME "=")) {
 				if (parse_push_cas_option(&cas,
-							  strchr(arg, '=') + 1, 1) < 0)
+							  strchr(arg, '=') + 1, 0) < 0)
 					exit(1);
 				continue;
 			}