dovecot2 fails to update in combination with pigeonhole-0.4.0

[Johan Hendriks]

Hello all!
I try to update my dovecot server.
But the following error is printed.
I use pkgng.

# portmaster -d dovecot2

< snip>
===> Correct pkg-plist sequence to create group(s) and user(s)
===>   Compressing manual pages for dovecot-2.2.4
===>   Running ldconfig
/sbin/ldconfig -m /usr/local/lib/dovecot
===>   Installing ldconfig configuration file
===>   Registering installation for dovecot-2.2.4
pkg-static: unknown keyword stopdaemon, ignoring @stopdaemon
pkg-static: duplicate directory listing: /usr/local/share/doc/dovecot/, 
ignoring
Installing dovecot-2.2.4...pkg-static: dovecot-2.2.4 conflicts with 
dovecot-pigeonhole-0.4.0 (installs files into the same place). 
Problematic file: /usr/local/share/d
oc/dovecot/example-config/conf.d/20-managesieve.conf
*** [fake-pkg] Error code 70

Stop in /usr/ports/mail/dovecot2.
*** [install] Error code 1

Stop in /usr/ports/mail/dovecot2.

===>>> Installation of dovecot-2.2.4 (mail/dovecot2) failed
===>>> Aborting update

===>>> Killing background jobs
Terminated

===>>> You can restart from the point of failure with this command line:
        portmaster <flags> mail/dovecot2

===>>> Exiting

System is FreeBSD 9.1-RELEASE-p2
Thanks all

regards
Johan Hendriks