Update runtime files.
diff --git a/runtime/syntax/haskell.vim b/runtime/syntax/haskell.vim
index 11f4c35..e398085 100644
--- a/runtime/syntax/haskell.vim
+++ b/runtime/syntax/haskell.vim
@@ -1,7 +1,7 @@
" Vim syntax file
" Language: Haskell
" Maintainer: Haskell Cafe mailinglist <haskell-cafe@haskell.org>
-" Last Change: 2008 Dec 15
+" Last Change: 2017 Jun 04
" Original Author: John Williams <jrw@pobox.com>
"
" Thanks to Ryan Crumley for suggestions and John Meacham for
@@ -62,7 +62,7 @@
syn match hsNumber "\<[0-9]\+\>\|\<0[xX][0-9a-fA-F]\+\>\|\<0[oO][0-7]\+\>"
syn match hsFloat "\<[0-9]\+\.[0-9]\+\([eE][-+]\=[0-9]\+\)\=\>"
-" Keyword definitions. These must be patters instead of keywords
+" Keyword definitions. These must be patterns instead of keywords
" because otherwise they would match as keywords at the start of a
" "literate" comment (see lhs.vim).
syn match hsModule "\<module\>"