watchdog: cleanup spaces before tabs

cleanup spaces before tabs in drivers/watchdog/

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

diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 3a56bc3..139d773 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -514,7 +514,7 @@
 /* -- Module init functions -------------------------------------*/
 
 /**
- * 	pc87413_init: module's "constructor"
+ *	pc87413_init: module's "constructor"
  *
  *	Set up the WDT watchdog board. All we have to do is grab the
  *	resources we require and bitch if anyone beat us to them.