builtin/bundle.c: remove superfluous "newargc" variable

As noted in 891cb09 (bundle: don't segfault on "git bundle
<subcmd>", 2022-12-20) the "newargc" in this function is redundant to
using our own "argc". Let's refactor the function to avoid needlessly
introducing another variable.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

builtin/bundle.c

@@ -45,13 +45,12 @@ static int parse_options_cmd_bundle(int argc,
 		const char * const usagestr[],
 		const struct option options[],
 		char **bundle_file) {
-	int newargc;
-	newargc = parse_options(argc, argv, NULL, options, usagestr,
+	argc = parse_options(argc, argv, NULL, options, usagestr,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
-	if (!newargc)
+	if (!argc)
 		usage_with_options(usagestr, options);
 	*bundle_file = prefix_filename(prefix, argv[0]);
-	return newargc;
+	return argc;
 }
 
 static int cmd_bundle_create(int argc, const char **argv, const char *prefix) {