Update runtime files
diff --git a/runtime/indent/prolog.vim b/runtime/indent/prolog.vim
index ecd0894..ac03c28 100644
--- a/runtime/indent/prolog.vim
+++ b/runtime/indent/prolog.vim
@@ -1,7 +1,8 @@
" vim: set sw=4 sts=4:
-" Maintainer : Gergely Kontra <kgergely@mcl.hu>
-" Revised on : 2002.02.18. 23:34:05
-" Language : Prolog
+" Language: Prolog
+" Maintainer: Gergely Kontra <kgergely@mcl.hu> (Invalid email address)
+" Doug Kearns <dougkearns@gmail.com>
+" Revised on: 2002.02.18. 23:34:05
" Last change by: Takuya Fujiwara, 2018 Sep 23
" TODO: