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/loop.h b/libc/kernel/common/linux/loop.h
index 94baeb2..d66f1db 100644
--- a/libc/kernel/common/linux/loop.h
+++ b/libc/kernel/common/linux/loop.h
@@ -26,8 +26,8 @@
  LO_FLAGS_USE_AOPS = 2,
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#include <asm/posix_types.h>  
-#include <asm/types.h>  
+#include <asm/posix_types.h>
+#include <asm/types.h>
 struct loop_info {
  int lo_number;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
@@ -68,7 +68,7 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define LO_CRYPT_XOR 1
 #define LO_CRYPT_DES 2
-#define LO_CRYPT_FISH2 3  
+#define LO_CRYPT_FISH2 3
 #define LO_CRYPT_BLOW 4
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define LO_CRYPT_CAST128 5