Update runtime files.
diff --git a/runtime/doc/usr_44.txt b/runtime/doc/usr_44.txt
index 658c72f..09de577 100644
--- a/runtime/doc/usr_44.txt
+++ b/runtime/doc/usr_44.txt
@@ -1,4 +1,4 @@
-*usr_44.txt* For Vim version 8.0. Last change: 2008 Dec 28
+*usr_44.txt* For Vim version 8.0. Last change: 2017 May 06
VIM USER MANUAL - by Bram Moolenaar
@@ -686,7 +686,7 @@
you include two files.
If you want your syntax file to work with Vim 5.x, add a check for v:version.
-See yacc.vim for an example.
+Find an syntax file in the Vim 7.2 distribution for an example.
Do not include anything that is a user preference. Don't set 'tabstop',
'expandtab', etc. These belong in a filetype plugin.