Update runtime files.
diff --git a/runtime/lang/menu_cs_cz.latin1.vim b/runtime/lang/menu_cs_cz.latin1.vim
index efb28a0..3bf608d 100644
--- a/runtime/lang/menu_cs_cz.latin1.vim
+++ b/runtime/lang/menu_cs_cz.latin1.vim
@@ -1,3 +1,3 @@
 " Menu Translations:	Czech
 
-source <sfile>:p:h/menu_czech_czech_republic.1252.vim
+source <sfile>:p:h/menu_czech_czech_republic.ascii.vim