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/common/linux/lis331dlh.h b/libc/kernel/common/linux/lis331dlh.h
index ad381ec..5510546 100644
--- a/libc/kernel/common/linux/lis331dlh.h
+++ b/libc/kernel/common/linux/lis331dlh.h
@@ -18,7 +18,7 @@
  ****************************************************************************/
 #ifndef __LIS331DLH_H__
 #define __LIS331DLH_H__
-#include <linux/ioctl.h>  
+#include <linux/ioctl.h>
 #define LIS331DLH_IOCTL_BASE 77
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define LIS331DLH_IOCTL_SET_DELAY _IOW(LIS331DLH_IOCTL_BASE, 0, int)