Update runtime files.
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 9a682e5..187d00e 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 May 05
+*windows.txt* For Vim version 8.1. Last change: 2019 May 18
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1192,7 +1192,6 @@
the way when you're browsing code/text buffers. The next three
commands also work like this.
-
*:sbn* *:sbnext*
:[N]sbn[ext] [+cmd] [N]
Split window and go to [N]th next buffer in buffer list.