Cannot install lang/gawk with MANZ=yes

[Adam Ciarciński <adam%NetBSD.org@localhost>]

When trying to install lang/gawk with MANZ=yes, I get

=> Checking file-check results for gawk-4.1.3
ERROR: ************************************************************
ERROR: The following files are in the PLIST but not in /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg:
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/filefuncs.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/fnmatch.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/fork.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/inplace.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/ordchr.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/readdir.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/readfile.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/revoutput.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/revtwoway.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/rwarray.3am.gz
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/time.3am.gz
ERROR: ************************************************************
ERROR: The following files are in /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg but not in the PLIST:
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/filefuncs.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/fnmatch.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/fork.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/inplace.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/ordchr.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/readdir.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/readfile.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/revoutput.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/revtwoway.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/rwarray.3am
ERROR:         /tmp/pkgsrc/lang/gawk/work/.destdir/dist/pkg/man/man3am/time.3am

With MANZ=no it builds and installs.
Did something change recently in handling compressed man pages?

Kind regards,
Adam