Update runtime files.
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index 5ade8a9..c7c7f7e 100644
--- a/runtime/doc/vi_diff.txt
+++ b/runtime/doc/vi_diff.txt
@@ -1,4 +1,4 @@
-*vi_diff.txt* For Vim version 8.2. Last change: 2020 Jun 07
+*vi_diff.txt* For Vim version 8.2. Last change: 2020 Aug 15
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -467,7 +467,7 @@
last line in the file.
Multi-language support. |multi-lang|
- Files in double-byte or multi-byte encodings can be edited. There is
+ Files in double-byte or multibyte encodings can be edited. There is
UTF-8 support to be able to edit various languages at the same time,
without switching fonts. |UTF-8|
Messages and menus are available in different languages.