Clean up trailing whitespace in the kernel headers.

And fix the scripts so they stop letting trailing whitespace through.

Change-Id: Ie109fbe1f63321e565ba0fa60fee8e9cf3a61cfc
diff --git a/libc/kernel/arch-arm/asm/delay.h b/libc/kernel/arch-arm/asm/delay.h
index 77b4293..a04c40b 100644
--- a/libc/kernel/arch-arm/asm/delay.h
+++ b/libc/kernel/arch-arm/asm/delay.h
@@ -18,7 +18,7 @@
  ****************************************************************************/
 #ifndef __ASM_ARM_DELAY_H
 #define __ASM_ARM_DELAY_H
-#include <asm/param.h>  
+#include <asm/param.h>
 #define MAX_UDELAY_MS 2
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define udelay(n)   (__builtin_constant_p(n) ?   ((n) > (MAX_UDELAY_MS * 1000) ? __bad_udelay() :   __const_udelay((n) * ((2199023U*HZ)>>11))) :   __udelay(n))