updated for version 7.0155
diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index 14797de..c64b454 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -1,4 +1,4 @@
-*message.txt*   For Vim version 7.0aa.  Last change: 2005 Oct 02
+*message.txt*   For Vim version 7.0aa.  Last change: 2005 Oct 10
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -589,6 +589,7 @@
 the |FileChangedRO| autocommand event to avoid this message (the autocommand
 must reset the 'readonly' option).  See 'modifiable' to completely disallow
 making changes to a file.
+This message is only given for the first change after 'readonly' has been set.
 
 							*W13*  >
   Warning: File "{filename}" has been created after editing started