More runtime file fixes for 'compatible' mode.
diff --git a/runtime/lang/menu_czech_czech_republic.1250.vim b/runtime/lang/menu_czech_czech_republic.1250.vim
index 4f21e89..ebaab9b 100644
--- a/runtime/lang/menu_czech_czech_republic.1250.vim
+++ b/runtime/lang/menu_czech_czech_republic.1250.vim
@@ -9,6 +9,8 @@
   finish
 endif
 let did_menu_trans = 1
+let s:keepcpo= &cpo
+set cpo&vim
 
 scriptencoding cp1250
 
@@ -262,3 +264,6 @@
   endfun
 endif
 " }}}
+
+let &cpo = s:keepcpo
+unlet s:keepcpo