Mark "completed" should be cleared from being retried commands.

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1438 d57e44dd-8a1f-0410-8b47-8ef2f437770f

scst/src/scst_targ.c

@@ -2418,6 +2418,7 @@ static int scst_check_sense(struct scst_cmd *cmd)
 					cmd->msg_status = 0;
 					cmd->host_status = DID_OK;
 					cmd->driver_status = 0;
+					cmd->completed = 0;
 
 					mempool_free(cmd->sense,
 						     scst_sense_mempool);