auth: fixed improper whitespacing

(cherry picked from commit 20231f4)

modules/auth/nonce.c

@@ -357,10 +357,10 @@ int check_nonce(auth_body_t* auth, str* secret1, str* secret2,
 		   different length (for example because of different auth.
 		   checks)..  Therefore we force credentials to be rebuilt by UAC
 		   without prompting for password */
-		/* if current time is less than start time, reset the start time 
-            	(e.g., after start, the system clock was set in the past) */ 
-        	t=time(0); 
-        	if (t < up_since) 
+		/* if current time is less than start time, reset the start time
+		 * (e.g., after start, the system clock was set in the past) */
+		t=time(0);
+		if (t < up_since)
 			up_since = t;
 		if (since < t)
 			return 4;