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/quota.h b/libc/kernel/common/linux/quota.h
index 3918bdc..55f6642 100644
--- a/libc/kernel/common/linux/quota.h
+++ b/libc/kernel/common/linux/quota.h
@@ -33,23 +33,23 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
 #define MAXQUOTAS 2
-#define USRQUOTA 0  
-#define GRPQUOTA 1  
+#define USRQUOTA 0
+#define GRPQUOTA 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define INITQFNAMES {   "user",     "group",     "undefined",  };
 #define SUBCMDMASK 0x00ff
 #define SUBCMDSHIFT 8
 #define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define Q_SYNC 0x800001  
-#define Q_QUOTAON 0x800002  
-#define Q_QUOTAOFF 0x800003  
-#define Q_GETFMT 0x800004  
+#define Q_SYNC 0x800001
+#define Q_QUOTAON 0x800002
+#define Q_QUOTAOFF 0x800003
+#define Q_GETFMT 0x800004
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define Q_GETINFO 0x800005  
-#define Q_SETINFO 0x800006  
-#define Q_GETQUOTA 0x800007  
-#define Q_SETQUOTA 0x800008  
+#define Q_GETINFO 0x800005
+#define Q_SETINFO 0x800006
+#define Q_GETQUOTA 0x800007
+#define Q_SETQUOTA 0x800008
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define QIF_BLIMITS 1
 #define QIF_SPACE 2