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/ipv6_route.h b/libc/kernel/common/linux/ipv6_route.h
index b6749dc..5e1eb10 100644
--- a/libc/kernel/common/linux/ipv6_route.h
+++ b/libc/kernel/common/linux/ipv6_route.h
@@ -19,20 +19,20 @@
 #ifndef _LINUX_IPV6_ROUTE_H
 #define _LINUX_IPV6_ROUTE_H
 #include <linux/types.h>
-#define RTF_DEFAULT 0x00010000  
+#define RTF_DEFAULT 0x00010000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define RTF_ALLONLINK 0x00020000  
-#define RTF_ADDRCONF 0x00040000  
-#define RTF_PREFIX_RT 0x00080000  
-#define RTF_ANYCAST 0x00100000  
+#define RTF_ALLONLINK 0x00020000
+#define RTF_ADDRCONF 0x00040000
+#define RTF_PREFIX_RT 0x00080000
+#define RTF_ANYCAST 0x00100000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define RTF_NONEXTHOP 0x00200000  
+#define RTF_NONEXTHOP 0x00200000
 #define RTF_EXPIRES 0x00400000
-#define RTF_ROUTEINFO 0x00800000  
-#define RTF_CACHE 0x01000000  
+#define RTF_ROUTEINFO 0x00800000
+#define RTF_CACHE 0x01000000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define RTF_FLOW 0x02000000  
-#define RTF_POLICY 0x04000000  
+#define RTF_FLOW 0x02000000
+#define RTF_POLICY 0x04000000
 #define RTF_PREF(pref) ((pref) << 27)
 #define RTF_PREF_MASK 0x18000000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */