sbool jmatch_any(S pat, Iterable<S> l) {
  ret jmatch_any(pat, l, null);
}

sbool jmatch_any(S pat, Iterable<S> l, Matches m) {
  for (S s : unnull(l))
    if (jmatch(pat, s, m))
      true;
  false;
}

sbool jmatch_any(LS patterns, Iterable<S> l, Matches m) {
  if (nempty(patterns))
    for (S s : unnull(l))
      for (S pat : patterns)
        if (jmatch(pat, s, m))
          true;
  false;
}

Began life as a copy of #1020831