In the generated `docs/busybox.pod` file, add a link for each command in
the big command list that goes to that command's description, like a
compact table of contents. This seems to only affect the generated HTML
version of the usage page.

To add `id` attributes to each usage section title, each command now
uses `=head2` instead of `=item` for their section heading.

To add links to each command in the list, the list was unindented so
that it could use rich text, and each command was marked as code text
(C<>) so they are styled in monospace. These changes mean that the HTML
and mandoc command list will expand to fit the available width of the
viewport, rather than wrapping at a fixed line-length. The plain text
version retains its existing wrapping behavior.

Because of the new code text formatting, `--quotes=none` was added to
the pod2man and pod2text invocations in Makefile.custom to prevent the
command list from quoting every single command.

Signed-off-by: Noelle Leigh <noelle@noelle.dev>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

"error: format not a string literal and no format arguments"

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Not that allnoconfig build is useful in any way...

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

First, I _again_ violated it - two xz-related applets are in wrong positions.
Second, planned in-applet help text thing will be so much easier without
this requirement...

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>