This software contains two PERL5 scripts.

sync-gnats-ports.pl <DESTDIR>

This program uses rsync to mirror the FreeBSD GNATS PR database (ports only) to
<DESTDIR>. It sets a 'lock' file in /tmp so that it will not run multiple
simultaneous instances. You should probably add 'rm -f /tmp/pr-up-running'
to your /etc/rc.local to solve problems that may happen on power loss, or
reboot.

parse-gnats-ports.pl <DESTDIR>

This program parses summary information from the PR files and builds an
SQLite3 database for the ports-mgmt/prhistory port. The database file is
stored in /var/db/ports/ports-pr.db. Also it creates a file 
/var/db/ports/lastrun.txt
to remember the last update, so it will only operate on new information.
If you delete /var/db/ports/lastrun.txt it will cause the script to reparse all
PR files and rebuild the /var/db/ports/ports-pr.db file.

<DESTDIR>

This should be an existing path to store the PR files. (presently requires
approximately 1.5GB of storage space).

example:

> mkdir /b
> sync-gnats-ports.pl /b

Fix: thanks

Patch attached with submission follows: