The ptsort utility is a variant of the standard tsort (topological
sort) utility which allows nodes to be prioritized, moving them and
all their predecessors up in the final order.

The latest version of the source code is available from Github:

  https://github.com/dag-erling/ptsort

Bugs can be reported as issues in Github:

  https://github.com/dag-erling/ptsort/issues
