bin/53488: Manual changes to sbin/route/keywords.h get overwritten on regen

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>Number:         53488
>Category:       bin
>Synopsis:       Manual changes to sbin/route/keywords.h get overwritten on regen
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 31 22:00:00 +0000 2018
>Originator:     Sevan Janiyan
>Release:        NetBSD-HEAD
>Organization:
>Environment:
>Description:
Changes have been made directly to keywords.h which get overwritten upon regenerating the file using keywords.sh. I'd like to remove xns from the .sh file & regenerate the .h file but unsure if the changes from the .h file should be added back to the .sh file.

Regenerating keywords.h with the current version of keywords.sh without any changes causes the follow changes in keywords.h.

Index: keywords.h
===================================================================
RCS file: /cvsroot/src/sbin/route/keywords.h,v
retrieving revision 1.14
diff -u -p -r1.14 keywords.h
--- keywords.h	4 Apr 2016 07:37:07 -0000	1.14
+++ keywords.h	31 Jul 2018 21:49:41 -0000
@@ -1,4 +1,4 @@
-/* $NetBSD: keywords.h,v 1.14 2016/04/04 07:37:07 ozaki-r Exp $ */
+/* $NetBSD$ */
 
 /* WARNING!  This file was generated by keywords.sh  */
 
@@ -12,9 +12,8 @@ extern struct keytab {
 #define	K_ATALK	2
 #define	K_BLACKHOLE	3
 #define	K_CHANGE	4
-/* #define	K_CLONED	5 */
-/* #define	K_CLONING	6 */
-#define	K_CONNECTED	6
+#define	K_CLONED	5
+#define	K_CLONING	6
 #define	K_DELETE	7
 #define	K_DST	8
 #define	K_EXPIRE	9
@@ -31,7 +30,7 @@ extern struct keytab {
 #define	K_INET	20
 #define	K_INET6	21
 #define	K_LINK	22
-/* #define	K_LLINFO	23 */
+#define	K_LLINFO	23
 #define	K_LOCK	24
 #define	K_LOCKREST	25
 #define	K_MASK	26
@@ -54,11 +53,10 @@ extern struct keytab {
 #define	K_STATIC	43
 #define	K_X25	44
 #define	K_XNS	45
-/* #define	K_XRESOLVE	46 */
+#define	K_XRESOLVE	46
 #define	K_FLUSHALL	47
-/* #define	K_NOCLONED	48 */
-/* #define	K_NOCLONING	49 */
-#define	K_NOCONNECTED	49
+#define	K_NOCLONED	48
+#define	K_NOCLONING	49
 #define	K_NOBLACKHOLE	50
 #define	K_NOREJECT	51
 #define	K_MPLS	52

>How-To-Repeat:

>Fix: