* Use make variables instead of hard coding commands, paths, and
options.
* Wrap some long lines.
* Replace shell loops with make for loops, etc.
PR: docs/31132
Submitted by: Cyrille Lefevre <clefevre@citeweb.net>
one in a comment; since the former is clearly visible from the top of
the file, the latter's only purpose was to bloat the repository a
little more.
No objections by: -doc, -www
