parse-options-cb: convert sha1_array_append caller to struct object_id

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

parse-options-cb.c

@@ -96,7 +96,7 @@ int parse_opt_commits(const struct option *opt, const char *arg, int unset)
 
 int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
 {
-	unsigned char sha1[20];
+	struct object_id oid;
 
 	if (unset) {
 		sha1_array_clear(opt->value);
@@ -104,9 +104,9 @@ int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
 	}
 	if (!arg)
 		return -1;
-	if (get_sha1(arg, sha1))
+	if (get_oid(arg, &oid))
 		return error(_("malformed object name '%s'"), arg);
-	sha1_array_append(opt->value, sha1);
+	sha1_array_append(opt->value, oid.hash);
 	return 0;
 }