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/processor_32.h b/libc/kernel/arch-x86/asm/processor_32.h
index c759016..beb3075 100644
--- a/libc/kernel/arch-x86/asm/processor_32.h
+++ b/libc/kernel/arch-x86/asm/processor_32.h
@@ -297,17 +297,17 @@
 #define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define K8_NOP1 GENERIC_NOP1
-#define K8_NOP2 ".byte 0x66,0x90\n" 
-#define K8_NOP3 ".byte 0x66,0x66,0x90\n" 
-#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n" 
+#define K8_NOP2 ".byte 0x66,0x90\n"
+#define K8_NOP3 ".byte 0x66,0x66,0x90\n"
+#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n"
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define K8_NOP5 K8_NOP3 K8_NOP2 
+#define K8_NOP5 K8_NOP3 K8_NOP2
 #define K8_NOP6 K8_NOP3 K8_NOP3
 #define K8_NOP7 K8_NOP4 K8_NOP3
 #define K8_NOP8 K8_NOP4 K8_NOP4
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define K7_NOP1 GENERIC_NOP1
-#define K7_NOP2 ".byte 0x8b,0xc0\n" 
+#define K7_NOP2 ".byte 0x8b,0xc0\n"
 #define K7_NOP3 ".byte 0x8d,0x04,0x20\n"
 #define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n"
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */