Update runtime files.
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index c6358e4..575e852 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -1,4 +1,4 @@
-*autocmd.txt*   For Vim version 8.0.  Last change: 2017 Jan 14
+*autocmd.txt*   For Vim version 8.0.  Last change: 2017 Apr 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -621,7 +621,7 @@
 				to tell Vim what to do next.
 				NOTE: When this autocommand is executed, the
 				current buffer "%" may be different from the
-				buffer that was changed "<afile>".
+				buffer that was changed, which is in "<afile>".
 				NOTE: The commands must not change the current
 				buffer, jump to another buffer or delete a
 				buffer.  *E246* *E811*