USB: serial: Remove unnecessary \n's from dbg uses

#define dbg adds the newline, messages shouldn't.
Converted dbg("%s", "some string") to dbg("some string")

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 38762a0..7793c4a 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -332,7 +332,7 @@
 	struct usb_serial_port 	*port   =  urb->context;
 	int status = urb->status;
 
-	dbg("%s - port %0x\n", __func__, port->number);
+	dbg("%s - port %0x", __func__, port->number);
 
 	port->write_urb_busy = 0;
 	if (status) {