staging: line6/pcm.c: Removed trailing whitespace

Removed a line of only whitespace
Signed-off-by: Johannes Thumshirn <morbidrsa@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/line6/pcm.c

@@ -99,7 +99,7 @@ int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int channels)
 	unsigned long flags_new = flags_old | channels;
 	unsigned long flags_final = flags_old;
 	int err = 0;
-	
+
 	line6pcm->prev_fbuf = NULL;
 
 	if (test_flags(flags_old, flags_new, LINE6_BITS_CAPTURE_BUFFER)) {