[WATCHDOG] More coding-style and trivial clean-up

Some more cleaning-up of the watchdog drivers.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
index 2525da5..0560182 100644
--- a/drivers/watchdog/w83977f_wdt.c
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -426,7 +426,7 @@
 			return -EFAULT;
 
 		if (wdt_set_timeout(new_timeout))
-		    return -EINVAL;
+			return -EINVAL;
 
 		wdt_keepalive();
 		/* Fall */