fileutil, traverse - Bumped another patchlevel.
Bug in cycle slipped through testing (Typo in the varnames).

This then exposed a bug in the 8.5+ specific implementations of GLOBD
and GLOBF, with the link check done wrongly for relative
links. Traverse was ok only because it was missing these
implementations entirely.

Both are now fixed too, i.e. link check corrected, and traverse
extended to have the same helper code.

Updated tests, docs.
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