bootstrap: allow FreeBSD gzip $ gzip --version > /dev/null FreeBSD gzip 20100407 * build-aux/bootstrap (get_version): Parse FreeBSD gzip version, which has no '.' and goes to stderr. * build-aux/bootstrap.conf (buildreq): Improve the sample file. Reported by Matthias Bolte. Signed-off-by: Eric Blake <eblake@redhat.com>