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-mips/asm/fcntl.h b/libc/kernel/arch-mips/asm/fcntl.h
index 996f996..57d96be 100644
--- a/libc/kernel/arch-mips/asm/fcntl.h
+++ b/libc/kernel/arch-mips/asm/fcntl.h
@@ -22,23 +22,23 @@
 #define O_SYNC 0x0010
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define O_NONBLOCK 0x0080
-#define O_CREAT 0x0100  
-#define O_TRUNC 0x0200  
-#define O_EXCL 0x0400  
+#define O_CREAT 0x0100
+#define O_TRUNC 0x0200
+#define O_EXCL 0x0400
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define O_NOCTTY 0x0800  
-#define FASYNC 0x1000  
-#define O_LARGEFILE 0x2000  
-#define O_DIRECT 0x8000  
+#define O_NOCTTY 0x0800
+#define FASYNC 0x1000
+#define O_LARGEFILE 0x2000
+#define O_DIRECT 0x8000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define F_GETLK 14
 #define F_SETLK 6
 #define F_SETLKW 7
-#define F_SETOWN 24  
+#define F_SETOWN 24
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define F_GETOWN 23  
+#define F_GETOWN 23
 #ifndef __mips64
-#define F_GETLK64 33  
+#define F_GETLK64 33
 #define F_SETLK64 34
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define F_SETLKW64 35