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/lockd/nlm.h b/libc/kernel/common/linux/lockd/nlm.h
index 62f0814..e134c11 100644
--- a/libc/kernel/common/linux/lockd/nlm.h
+++ b/libc/kernel/common/linux/lockd/nlm.h
@@ -51,7 +51,7 @@
 #define NLMPROC_UNLOCK_RES 14
 #define NLMPROC_GRANTED_RES 15
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define NLMPROC_NSM_NOTIFY 16  
+#define NLMPROC_NSM_NOTIFY 16
 #define NLMPROC_SHARE 20
 #define NLMPROC_UNSHARE 21
 #define NLMPROC_NM_LOCK 22