Any idea for a better error message for pkg_add ?

[Marc Espie <Marc_(_dot_)_Espie_(_at_)_liafa_(_dot_)_jussieu_(_dot_)_fr>]

tetto-~% pkg_add keep.tgz
tar: WARNING! These patterns were not matched:
+CONTENTS
pkg_add: tar extract of /home/espie/keep.tgz failed!
pkg_add: unable to extract table of contents file from `/home/espie/keep.tgz'
- not a package?


I find this to be pretty explicit: keep.tgz is not a package.

Any way to change the message so that clueless newbies will stop asking
again and again why pkg_add does not work on comp28.tgz ?

-- 
	Marc Espie		
|anime, sf, juggling, unicycle, acrobatics, comics...
|AmigaOS, OpenBSD, C++, perl, Icon, PostScript...
| `real programmers don't die, they just get out of beta'