cfq: remove extraneous '\n' in blktrace output

I noticed a blank line in blktrace output.  This patch fixes that.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

block/cfq-iosched.c

@@ -1252,7 +1252,7 @@ static int cfq_forced_dispatch(struct cfq_data *cfqd)
 
 	BUG_ON(cfqd->busy_queues);
 
-	cfq_log(cfqd, "forced_dispatch=%d\n", dispatched);
+	cfq_log(cfqd, "forced_dispatch=%d", dispatched);
 	return dispatched;
 }