problem (re)installing textproc/docbook-sk

[Robert Huff]

Hello:
	Sorry to bother folks with a minor matter but ....
	I'm cleaning up the mess left by a system crash; this involves
rebuilding pkgdb.db and the list of ports in /var/db/pkg.
	When I try to reinstall textproc/docbook-sk, I get:

===>   Generating temporary packing list
===>  Checking if textproc/docbook-sk already installed
for file in `/usr/bin/find /usr/ports/textproc/docbook-sk/work -type f | /usr/bin/sed -e 's|^/usr/ports/textproc/docbook-sk/work/||' | /usr/bin/grep -v '^\.' | /usr/bin/sort`; do  install  -o root -g wheel -m 444 /usr/ports/textproc/docbook-sk/work/$file /usr/local/share/xml/docbook/4.1.2/$file;  done
xmlcatmgr: entry already exists for `/usr/local/share/xml/docbook/4.1.2/docbook.cat' of type `CATALOG'
*** Error code 1

Stop in /usr/ports/textproc/docbook-sk.

	I've tried a few hesitant experiments (I know diddley about xml
catalogs and xmlcatmgr) to no avail.  Hwo do I fix this?  Please?
	Thanks,



					Robert Huff