Updated runtime files.
diff --git a/runtime/syntax/po.vim b/runtime/syntax/po.vim
index c09b960..2ab13ac 100644
--- a/runtime/syntax/po.vim
+++ b/runtime/syntax/po.vim
@@ -1,7 +1,7 @@
" Vim syntax file
" Language: po (gettext)
" Maintainer: Dwayne Bailey <dwayne@translate.org.za>
-" Last Change: 2012 Apr 30
+" Last Change: 2015 Jun 07
" Contributors: Dwayne Bailey (Most advanced syntax highlighting)
" Leonardo Fontenelle (Spell checking)
" Nam SungHyun <namsh@kldp.org> (Original maintainer)
@@ -52,6 +52,9 @@
syn match poCommentAutomatic "^#\..*$"
syn match poCommentSources "^#:.*$"
syn match poCommentFlags "^#,.*$" contains=poFlagFuzzy
+syn match poDiffOld '\(^#| "[^{]*+}\|{+[^}]*+}\|{+[^}]*\|"$\)' contained
+syn match poDiffNew '\(^#| "[^{]*-}\|{-[^}]*-}\|{-[^}]*\|"$\)' contained
+syn match poCommentDiff "^#|.*$" contains=poDiffOld,poDiffNew
" Translations (also includes header fields as they appear in a translation msgstr)
syn region poCommentKDE start=+"_: +ms=s+1 end="\\n" end="\"\n^msgstr"me=s-1 contained
@@ -94,8 +97,11 @@
HiLink poCommentAutomatic Comment
HiLink poCommentTranslator Comment
HiLink poCommentFlags Special
+ HiLink poCommentDiff Comment
HiLink poCopyrightUnset Todo
HiLink poFlagFuzzy Todo
+ HiLink poDiffOld Todo
+ HiLink poDiffNew Special
HiLink poObsolete Comment
HiLink poStatementMsgid Statement