arch/sh/lib/strlen.S: Checkpatch cleanup

arch/sh/lib/strlen.S:38: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/lib/strlen.S b/arch/sh/lib/strlen.S
index f8ab296..1bcc13f 100644
--- a/arch/sh/lib/strlen.S
+++ b/arch/sh/lib/strlen.S
@@ -35,7 +35,7 @@
 	mov.b	@r4+,r1
 	tst	r1,r1
 	bt	8f
-	add	#1,r2	
+	add	#1,r2
 
 1:
 	mov	#0,r3