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-x86/asm/vm86.h b/libc/kernel/arch-x86/asm/vm86.h
index 222a11e..9568930 100644
--- a/libc/kernel/arch-x86/asm/vm86.h
+++ b/libc/kernel/arch-x86/asm/vm86.h
@@ -23,11 +23,11 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IOPL_MASK 0x00003000
 #define NT_MASK 0x00004000
-#define VM_MASK 0  
+#define VM_MASK 0
 #define AC_MASK 0x00040000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define VIF_MASK 0x00080000  
-#define VIP_MASK 0x00100000  
+#define VIF_MASK 0x00080000
+#define VIP_MASK 0x00100000
 #define ID_MASK 0x00200000
 #define BIOSSEG 0x0f000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
@@ -41,13 +41,13 @@
 #define VM86_TYPE(retval) ((retval) & 0xff)
 #define VM86_ARG(retval) ((retval) >> 8)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define VM86_SIGNAL 0  
-#define VM86_UNKNOWN 1  
-#define VM86_INTx 2  
-#define VM86_STI 3  
+#define VM86_SIGNAL 0
+#define VM86_UNKNOWN 1
+#define VM86_INTx 2
+#define VM86_STI 3
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define VM86_PICRETURN 4  
-#define VM86_TRAP 6  
+#define VM86_PICRETURN 4
+#define VM86_TRAP 6
 #define VM86_PLUS_INSTALL_CHECK 0
 #define VM86_ENTER 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */