updated for version 7.0193
diff --git a/src/po/cleanup.vim b/src/po/cleanup.vim
index a4905c2..24ae74e 100644
--- a/src/po/cleanup.vim
+++ b/src/po/cleanup.vim
@@ -3,9 +3,17 @@
" - Comment-out fuzzy and empty messages.
" - Make sure there is a space before the string (required for Solaris).
" Requires Vim 6.0 or later (because of multi-line search patterns).
-diffoff!
+
+" Disable diff mode, because it makes this very slow
+let s:was_diff = &diff
+setl nodiff
+
silent g/^#: /d
silent g/^#, fuzzy\(, .*\)\=\nmsgid ""\@!/.+1,/^$/-1s/^/#\~ /
silent g/^msgstr"/s//msgstr "/
silent g/^msgid"/s//msgid "/
silent g/^msgstr ""\(\n"\)\@!/?^msgid?,.s/^/#\~ /
+
+if s:was_diff
+ setl diff
+endif