Coding Style cleanup
diff --git a/cpu/bf533/interrupt.S b/cpu/bf533/interrupt.S
index b4d2579..e780dc6 100644
--- a/cpu/bf533/interrupt.S
+++ b/cpu/bf533/interrupt.S
@@ -240,7 +240,7 @@
 	sp += 12;
 
 _evt_rst_exit:
-	rtn; 
+	rtn;
 
 irq_panic:
 	r0 = IRQ_EVX;
@@ -279,7 +279,7 @@
 
 evt_evt7_exit:
 	RESTORE_CONTEXT
-	rti; 
+	rti;
 
 .global evt_evt8
 evt_evt8: