runtime(misc): announce adoption of various runtime files

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/autoload/netrwFileHandlers.vim b/runtime/autoload/netrwFileHandlers.vim
index d07235c..2b6f8f7 100644
--- a/runtime/autoload/netrwFileHandlers.vim
+++ b/runtime/autoload/netrwFileHandlers.vim
@@ -1,6 +1,7 @@
 " netrwFileHandlers: contains various extension-based file handlers for
 "                    netrw's browsers' x command ("eXecute launcher")
-" Author:	Charles E. Campbell
+" Maintainer: This runtime file is looking for a new maintainer.
+" Original Author: Charles E. Campbell
 " Date:		Sep 18, 2020
 " Version:	11
 " Copyright:    Copyright (C) 1999-2012 Charles E. Campbell {{{1