Update runtime files and translations
diff --git a/src/po/ko.po b/src/po/ko.po
index a265cb4..9bab29d 100644
--- a/src/po/ko.po
+++ b/src/po/ko.po
@@ -2,6 +2,8 @@
 #
 # FIRST AUTHOR SungHyun Nam <goweol@gmail.com>, 2000-2018
 #
+# Original translations.
+#
 msgid ""
 msgstr ""
 "Project-Id-Version: vim 8.1\n"