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/in6.h b/libc/kernel/common/linux/in6.h
index a876669..f785417 100644
--- a/libc/kernel/common/linux/in6.h
+++ b/libc/kernel/common/linux/in6.h
@@ -94,21 +94,21 @@
 #define IPV6_PRIORITY_13 0x0d00
 #define IPV6_PRIORITY_14 0x0e00
 #define IPV6_PRIORITY_15 0x0f00
-#define IPPROTO_HOPOPTS 0  
+#define IPPROTO_HOPOPTS 0
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IPPROTO_ROUTING 43  
-#define IPPROTO_FRAGMENT 44  
-#define IPPROTO_ICMPV6 58  
-#define IPPROTO_NONE 59  
+#define IPPROTO_ROUTING 43
+#define IPPROTO_FRAGMENT 44
+#define IPPROTO_ICMPV6 58
+#define IPPROTO_NONE 59
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IPPROTO_DSTOPTS 60  
-#define IPPROTO_MH 135  
+#define IPPROTO_DSTOPTS 60
+#define IPPROTO_MH 135
 #define IPV6_TLV_PAD0 0
 #define IPV6_TLV_PADN 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPV6_TLV_ROUTERALERT 5
 #define IPV6_TLV_JUMBO 194
-#define IPV6_TLV_HAO 201  
+#define IPV6_TLV_HAO 201
 #define IPV6_ADDRFORM 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IPV6_2292PKTINFO 2
@@ -121,7 +121,7 @@
 #define IPV6_2292HOPLIMIT 8
 #define IPV6_NEXTHOP 9
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IPV6_AUTHHDR 10  
+#define IPV6_AUTHHDR 10
 #define IPV6_FLOWINFO 11
 #define IPV6_UNICAST_HOPS 16
 #define IPV6_MULTICAST_IF 17