I'm getting the following error when trying to build a pkg from a template 
file:

[oliver@gaspar void-packages]$ ./xbps-src pkg setroot
xbps-uunshare: invalid option -- 'D'
Usage: xbps-uunshare [-b src:dest] <dir> <cmd> [<cmdargs>]


-b src:dest Bind mounts <src> into <dir>/<dest> (may be specified multiple 
times)


xbps-uunshare: invalid option -- 'D'
Usage: xbps-uunshare [-b src:dest] <dir> <cmd> [<cmdargs>]


-b src:dest Bind mounts <src> into <dir>/<dest> (may be specified multiple 
times)


I've tried ./xbps-src zap && ./xbps-src binary-bootstrap with no change in 
behaviour.  
It looks like it's calling 
.../void-packages/common/chroot-style/uunshare.sh which has the following 
line but I don't see -D as a option in xbps-uunshare

*exec xbps-uunshare $EXTRA_ARGS -D $DISTDIR ${HOSTDIR:+-H $HOSTDIR} 
$MASTERDIR $@*


Any ideas on what the problem is?