Update runtime files.
diff --git a/runtime/lang/menu_ja_jp.utf-8.vim b/runtime/lang/menu_ja_jp.utf-8.vim
index e05750f..5835868 100644
--- a/runtime/lang/menu_ja_jp.utf-8.vim
+++ b/runtime/lang/menu_ja_jp.utf-8.vim
@@ -2,9 +2,9 @@
"
" Menu Translations: Japanese (UTF-8)
" Last Translator: MURAOKA Taro <koron.kaoriya@gmail.com>
-" Last Change: 28-Jan-2016.
+" Last Change: 18-Jul-2018.
"
-" Copyright (C) 2001-2016 MURAOKA Taro <koron.kaoriya@gmail.com>,
+" Copyright (C) 2001-2018 MURAOKA Taro <koron.kaoriya@gmail.com>,
" vim-jp <http://vim-jp.org/>
"
" THIS FILE IS DISTRIBUTED UNDER THE VIM LICENSE.