Update runtime files.
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index 7de6fb6..1b3839e 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -1,4 +1,4 @@
-*help.txt* For Vim version 8.2. Last change: 2020 Apr 05
+*help.txt* For Vim version 8.2. Last change: 2020 Aug 15
VIM - main help file
k
@@ -158,7 +158,7 @@
Language support ~
|digraph.txt| list of available digraphs
-|mbyte.txt| multi-byte text support
+|mbyte.txt| multibyte text support
|mlang.txt| non-English language support
|rileft.txt| right-to-left editing mode
|arabic.txt| Arabic language support and editing