diff --git a/runtime/doc/cmdline.txt b/runtime/doc/cmdline.txt
index a0e37b5..d87d4fe 100644
--- a/runtime/doc/cmdline.txt
+++ b/runtime/doc/cmdline.txt
@@ -1,4 +1,4 @@
-*cmdline.txt*   For Vim version 8.0.  Last change: 2017 Sep 17
+*cmdline.txt*   For Vim version 8.0.  Last change: 2017 Oct 19
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -839,7 +839,8 @@
 	<cfile>    is replaced with the path name under the cursor (like what
 		   |gf| uses)
 	<afile>    When executing autocommands, is replaced with the file name
-		   for a file read or write.
+		   of the buffer being manipulated, or the file for a read or
+		   write.
 	<abuf>     When executing autocommands, is replaced with the currently
 		   effective buffer number (for ":r file" and ":so file" it is
 		   the current buffer, the file being read/sourced is not in a