but replacing the "dir" file unconditionally isn't it. During the course
of development, if .info files go away from the sources, nothing removes
them from /usr/share/info, this is the same as system binaries etc.
Removing the entire index isn't helpful, because you've got to reinstall
the entire tree to get it back again. bsd.info.mk has a reference to
/usr/share/info/dir-tmpl, I wonder if it once created dir if needed?
