blk-wbt: Drop needless newlines from tracepoint format strings

Drop needless newlines from tracepoint format strings, they only add
empty lines to perf tracing output.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

include/trace/events/wbt.h

@@ -46,7 +46,7 @@ TRACE_EVENT(wbt_stat,
 	),
 
 	TP_printk("%s: rmean=%llu, rmin=%llu, rmax=%llu, rsamples=%llu, "
-		  "wmean=%llu, wmin=%llu, wmax=%llu, wsamples=%llu\n",
+		  "wmean=%llu, wmin=%llu, wmax=%llu, wsamples=%llu",
 		  __entry->name, __entry->rmean, __entry->rmin, __entry->rmax,
 		  __entry->rnr_samples, __entry->wmean, __entry->wmin,
 		  __entry->wmax, __entry->wnr_samples)
@@ -73,7 +73,7 @@ TRACE_EVENT(wbt_lat,
 		__entry->lat = div_u64(lat, 1000);
 	),
 
-	TP_printk("%s: latency %lluus\n", __entry->name,
+	TP_printk("%s: latency %lluus", __entry->name,
 			(unsigned long long) __entry->lat)
 );
 
@@ -115,7 +115,7 @@ TRACE_EVENT(wbt_step,
 		__entry->max	= max;
 	),
 
-	TP_printk("%s: %s: step=%d, window=%luus, background=%u, normal=%u, max=%u\n",
+	TP_printk("%s: %s: step=%d, window=%luus, background=%u, normal=%u, max=%u",
 		  __entry->name, __entry->msg, __entry->step, __entry->window,
 		  __entry->bg, __entry->normal, __entry->max)
 );
@@ -148,7 +148,7 @@ TRACE_EVENT(wbt_timer,
 		__entry->inflight	= inflight;
 	),
 
-	TP_printk("%s: status=%u, step=%d, inflight=%u\n", __entry->name,
+	TP_printk("%s: status=%u, step=%d, inflight=%u", __entry->name,
 		  __entry->status, __entry->step, __entry->inflight)
 );