Apparently, dash doesn't expand shell patterns within a quoted string,
whereas bash does. We can't remove the quoting entirely, though, since
that would cause problems when $LB_BASE or $_HOOK contains spaces (note
that $_HOOK can probably never contain spaces, but let's handle it just
in case). Only quoting the expansion of $LB_BASE and $_HOOK, but not the
shell pattern should make the hooks work with both bash and dash again.