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/nvram.h b/libc/kernel/common/linux/nvram.h
index 06aaa9d..8496f79 100644
--- a/libc/kernel/common/linux/nvram.h
+++ b/libc/kernel/common/linux/nvram.h
@@ -19,9 +19,9 @@
 #ifndef _LINUX_NVRAM_H
 #define _LINUX_NVRAM_H
 #include <linux/ioctl.h>
-#define NVRAM_INIT _IO('p', 0x40)  
+#define NVRAM_INIT _IO('p', 0x40)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define NVRAM_SETCKS _IO('p', 0x41)  
+#define NVRAM_SETCKS _IO('p', 0x41)
 #define NVRAM_FIRST_BYTE 14
 #define NVRAM_OFFSET(x) ((x)-NVRAM_FIRST_BYTE)
 #endif