updated for version 7.1-091
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index 854c8ba..93ba2f5 100644
--- a/runtime/doc/vi_diff.txt
+++ b/runtime/doc/vi_diff.txt
@@ -1,4 +1,4 @@
-*vi_diff.txt* For Vim version 7.1. Last change: 2007 May 07
+*vi_diff.txt* For Vim version 7.1. Last change: 2007 Aug 14
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -827,6 +827,8 @@
--socketid {id} Vim: GTK window socket to run Vim in
+--windowid {id} Vim: Win32 window ID to run Vim in
+
--version Vim: show version message and exit.
-? Vile: print usage summary and exit.