cgroups: simple variable reordering

src/lxc/cgroups/cgfsng.c

@@ -3377,9 +3377,9 @@ static int __cgroup_attach_many(const struct lxc_conf *conf, const char *name,
 {
 	call_cleaner(put_cgroup_ctx) struct cgroup_ctx *ctx = &(struct cgroup_ctx){};
 	int ret;
-	char pidstr[INTTYPE_TO_STRLEN(pid_t)];
 	size_t idx;
 	ssize_t pidstr_len;
+	char pidstr[INTTYPE_TO_STRLEN(pid_t)];
 
 	ret = lxc_cmd_get_cgroup_ctx(name, lxcpath, NULL, true,
 				     sizeof(struct cgroup_ctx), ctx);