grep: fix erroneously copy/pasted variable in check/assert pattern

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 3ecc47bec07b47f3452b4744f0e7482681e61748..bfa5419f335dc1db98059869de24f152cffb9aa6 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -908,11 +908,10 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
 static const char *unique_tracking_name(const char *name, struct object_id *oid)
 {
        struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 };
-       char src_ref[PATH_MAX];
-       snprintf(src_ref, PATH_MAX, "refs/heads/%s", name);
-       cb_data.src_ref = src_ref;
+       cb_data.src_ref = xstrfmt("refs/heads/%s", name);
        cb_data.dst_oid = oid;
        for_each_remote(check_tracking_name, &cb_data);
+       free(cb_data.src_ref);
        if (cb_data.unique)
                return cb_data.dst_ref;
        free(cb_data.dst_ref);