Copyright updated.
diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index d4af2f0..6ab0ddb 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -1,6 +1,7 @@
 
 /*
  * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
  */