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/if_arcnet.h b/libc/kernel/common/linux/if_arcnet.h
index ef16fda..afbbae6 100644
--- a/libc/kernel/common/linux/if_arcnet.h
+++ b/libc/kernel/common/linux/if_arcnet.h
@@ -19,24 +19,24 @@
 #ifndef _LINUX_IF_ARCNET_H
 #define _LINUX_IF_ARCNET_H
 #include <linux/if_ether.h>
-#define ARC_P_IP 212  
+#define ARC_P_IP 212
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ARC_P_IPV6 196  
-#define ARC_P_ARP 213  
-#define ARC_P_RARP 214  
-#define ARC_P_IPX 250  
+#define ARC_P_IPV6 196
+#define ARC_P_ARP 213
+#define ARC_P_RARP 214
+#define ARC_P_IPX 250
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ARC_P_NOVELL_EC 236  
-#define ARC_P_IP_RFC1051 240  
-#define ARC_P_ARP_RFC1051 241  
-#define ARC_P_ETHER 232  
+#define ARC_P_NOVELL_EC 236
+#define ARC_P_IP_RFC1051 240
+#define ARC_P_ARP_RFC1051 241
+#define ARC_P_ETHER 232
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ARC_P_DATAPOINT_BOOT 0  
+#define ARC_P_DATAPOINT_BOOT 0
 #define ARC_P_DATAPOINT_MOUNT 1
-#define ARC_P_POWERLAN_BEACON 8  
-#define ARC_P_POWERLAN_BEACON2 243  
+#define ARC_P_POWERLAN_BEACON 8
+#define ARC_P_POWERLAN_BEACON2 243
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ARC_P_LANSOFT 251  
+#define ARC_P_LANSOFT 251
 #define ARC_P_ATALK 0xDD
 #define ARCNET_ALEN 1
 struct arc_rfc1201