Update runtime files.
diff --git a/runtime/doc/tabpage.txt b/runtime/doc/tabpage.txt
index 20dd1ef..31fcc43 100644
--- a/runtime/doc/tabpage.txt
+++ b/runtime/doc/tabpage.txt
@@ -213,7 +213,8 @@
:tabN[ext] {count}
{count}<C-PageUp>
{count}gT Go {count} tab pages back. Wraps around from the first one
- to the last one.
+ to the last one. Note that the use of {count} is different
+ from |:tabnext|, where it is used as the tab page number.
:tabr[ewind] *:tabfir* *:tabfirst* *:tabr* *:tabrewind*
:tabfir[st] Go to the first tab page.