treewide: cleanup continuations and remove logging message whitespace

Using C line continuation inside format strings is error prone.
Clean up the unintended whitespace introduced by misuse of \.
Neaten correctly used line continations as well for consistency.

drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well,
but arcmsr needs a lot more work and the driver should likely be
moved to staging instead.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index e0888cb..8597ff2 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -56,8 +56,8 @@
 
 static int timeout = 3000;
 module_param(timeout, uint, S_IRUGO);
-MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), \
-		Pass -1 for infinite timeout");
+MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
+		 "Pass -1 for infinite timeout");
 
 /*
  * Initialization patterns. All bytes in the source buffer has bit 7