Add lua, nodejs, octave, qore, and tk-specific variables. (tk and tk85
define the same variable, so I only included tk.) This relates to
PR pkg/56301, where I noticed various REPLACE_* variables were not
listed in Appendix E of the pkgsrc guide.
There is a separate issue related to Appendix E here. If wip/mk is
found, the auto-generation of the help topic list for the pkgsrc guide
includes anything it finds under that path, but that's potentially
misleading, and causes the generated list to see-saw back and forth as
committers do or do not have wip visible (I do not).
9194a16051