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_fc.h b/libc/kernel/common/linux/if_fc.h
index 8c4152b..fc07ae0 100644
--- a/libc/kernel/common/linux/if_fc.h
+++ b/libc/kernel/common/linux/if_fc.h
@@ -18,10 +18,10 @@
  ****************************************************************************/
 #ifndef _LINUX_IF_FC_H
 #define _LINUX_IF_FC_H
-#define FC_ALEN 6  
+#define FC_ALEN 6
 #define FC_HLEN (sizeof(struct fch_hdr)+sizeof(struct fcllc))
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define FC_ID_LEN 3  
+#define FC_ID_LEN 3
 #define EXTENDED_SAP 0xAA
 #define UI_CMD 0x03
 struct fch_hdr {