fixed a bug that made 4.0 MYI+FT files unreadable in 4.1

myisam/mi_open.c

@@ -335,7 +335,6 @@ MI_INFO *mi_open(const char *name, int mode, uint open_flags)
           { /* 4.0 compatibility code, to be removed in 5.0 */
             share->keyinfo[i].seg=pos-FT_SEGS;
             share->keyinfo[i].keysegs-=FT_SEGS;
-            share->state.header.fulltext_keys++;
           }
           else
           {

myisam/myisamchk.c

@@ -876,7 +876,7 @@ static int myisamchk(MI_CHECK *param, my_string filename)
   }
   else
   {
-    if (share->state.header.fulltext_keys && !stopwords_inited++)
+    if (!stopwords_inited++)
       ft_init_stopwords();
 
     if (!(param->testflag & T_READONLY))