Fixed include guard.
For consistency, use the same pattern as in the rest of the project.
* Copyright (C) NGINX, Inc.
*/
-#ifndef _NXT_ISOLATION_H_
-#define _NXT_ISOLATION_H_
+#ifndef _NXT_ISOLATION_H_INCLUDED_
+#define _NXT_ISOLATION_H_INCLUDED_
nxt_int_t nxt_isolation_main_prefork(nxt_task_t *task, nxt_process_t *process,
@@ -15,4 +15,4 @@ nxt_int_t nxt_isolation_prepare_rootfs(nxt_task_t *task,
nxt_int_t nxt_isolation_change_root(nxt_task_t *task, nxt_process_t *process);
#endif
-#endif /* _NXT_ISOLATION_H_ */
+#endif /* _NXT_ISOLATION_H_INCLUDED_ */
