Installing new world failed (install -l)

Since -l switch introduced into install(8), I can't build new FreeBSD
box at all.

I do following command set to build new box: (http://eroese.org/mkw.sh)
1) cd /usr/head/src && svn up
2) make buildworld
3) make DESTDIR=/path/to/directory hierarchy distrib-dirs distribution
installworld

This worked for long time but after some point it had been broken. I
found only 20130425 in UPDATING about this, but installing mergemaster
gives nothing, obviously.
I can't compile new install(8) since I have old system like
FreeBSD-9-RELEASE (FreeBSD-CURRENT, r226748) and it doesn't have
needed functions.

The tail of install log is below.

.. (lines removed)
mtree -deU -f /usr/head/src/etc/mtree/BSD.sendmail.dist -p
/usr/home/root/logs/2013-04-28/16.18.03/distro.i386/
./var/spool/clientmqueue missing (created)
install -l s usr/src/sys /usr/home/root/logs/2013-04-28/16.18.03/distro.i386/sys
install: illegal option -- l
usage: install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
               [-o owner] file1 file2
       install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
               [-o owner] file1 ... fileN directory
       install -d [-v] [-g group] [-m mode] [-o owner] directory ...
*** [distrib-dirs] Error code 64

Stop in /usr/head/src/etc.
*** [hierarchy] Error code 1

Stop in /usr/head/src.
*** Error code 1

Stop in /usr/head/src.

-- Eir Nym