Copyright updated.
diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 7c7f1fc..abeb157 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -1,6 +1,7 @@
 
 /*
  * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
  */