compiler warnings fixed.

sql/ha_myisam.cc:
  compiler warning fixed.
sql/unireg.cc:
  compiler warning fixed.

sql/ha_myisam.cc

@@ -173,7 +173,7 @@ int table2myisam(TABLE *table_arg, MI_KEYDEF **keydef_out,
   pos= table_arg->key_info;
   for (i= 0; i < share->keys; i++, pos++)
   {
-    keydef[i].flag= (pos->flags & (HA_NOSAME | HA_FULLTEXT | HA_SPATIAL));
+    keydef[i].flag= ((uint16) pos->flags & (HA_NOSAME | HA_FULLTEXT | HA_SPATIAL));
     keydef[i].key_alg= pos->algorithm == HA_KEY_ALG_UNDEF ?
       (pos->flags & HA_SPATIAL ? HA_KEY_ALG_RTREE : HA_KEY_ALG_BTREE) :
       pos->algorithm;

sql/unireg.cc

@@ -394,7 +394,7 @@ static uint pack_keys(uchar *keybuff, uint key_count, KEY *keyinfo,
     pos[6]=pos[7]=0;				// For the future
     pos+=8;
     key_parts+=key->key_parts;
-    DBUG_PRINT("loop", ("flags: %d  key_parts: %d at 0x%lx",
+    DBUG_PRINT("loop", ("flags: %lu  key_parts: %d at 0x%lx",
                         key->flags, key->key_parts,
                         (long) key->key_part));
     for (key_part=key->key_part,key_part_end=key_part+key->key_parts ;