Dynamically generate required symlinks
    
    Historically when upstream adds new scripts it takes us a while to
    notice and update the specfile to include them.  With this, when
    upstream adds a new script this will automatically pick it up and
    generate the required symlink into the bindir so it can be found in
    the expected place.
    
    This also makes the symlinks relative, which fixes an rpm warning
    about absolute symlinks.