Update runtime files.
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 81b99a0..87a5d6f 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -1,4 +1,4 @@
-*windows.txt* For Vim version 8.1. Last change: 2019 Jul 18
+*windows.txt* For Vim version 8.1. Last change: 2019 Jul 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -28,8 +28,6 @@
{not able to use multiple windows when the |+windows| feature was disabled at
compile time}
-{not able to use vertically split windows when the |+vertsplit| feature was
-disabled at compile time}
==============================================================================
1. Introduction *windows-intro* *window*
@@ -162,6 +160,10 @@
Note: CTRL-S does not work on all terminals and might block
further input, use CTRL-Q to get going again.
Also see |++opt| and |+cmd|.
+ *E242*
+ Be careful when splitting a window in an autocommand, it may
+ mess up the window layout if this happens while making other
+ window layout changes.
CTRL-W CTRL-V *CTRL-W_CTRL-V*
CTRL-W v *CTRL-W_v*
@@ -507,7 +509,6 @@
current window and then creating another one with
":vert topleft split", except that the current window contents
is used for the new window.
- {not available when compiled without the |+vertsplit| feature}
*CTRL-W_L*
CTRL-W L Move the current window to be at the far right, using the full
@@ -515,7 +516,6 @@
current window and then creating another one with
":vert botright split", except that the current window
contents is used for the new window.
- {not available when compiled without the |+vertsplit| feature}
*CTRL-W_T*
CTRL-W T Move the current window to a new tab page. This fails if
@@ -667,6 +667,8 @@
|:vertical| was prepended).
Buf/Win Enter/Leave autocommands are not executed for the new
windows here, that's only done when they are really entered.
+ If autocommands change the window layout while this command is
+ busy an error will be given. *E249*
:[N]sa[rgument][!] [++opt] [+cmd] [N] *:sa* *:sargument*
Short for ":split | argument [N]": split window and go to Nth