Remove workaround for ancient HTML generation code.

Bump date for previous; mark up defined values with Dv;
use Aq instead of \*[Lt]\*[Gt].

* Rewrote internal handling of multiline field line data to fix a bug
where a newly opened line would immediately get wrapped out of existence.
The old method of handling lines in a multiline fie

* Rewrote internal handling of multiline field line data to fix a bug
where a newly opened line would immediately get wrapped out of existence.
The old method of handling lines in a multiline field did not cope with
this elegantly.

* Added new field flag O_REFORMAT which, when set, returns the field
buffer with newlines inserted where the line wrapped. Previously, there
was no way of preserving the on screen format of a multiline field.

* Added new file gdbinit which contains a macro to verify and print
the multiline field line data structure.

* Bumped libform major number due to changes in the _form_field structure.

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Use mdoc macros instead of roff to mark up table;
mark up some more stuff.

Formatting tweaks to make things line up yet not have columns
run into each other. Fix one typo while here.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

curent->current from Igor Sobrado in PR misc/19814
plus some other spelling errors and (sorry) some UK->USing for
consistency.

New sentence, new line. From Robert Elz.

Added extension to interface, set_field_printf which allows a printf
style setting of field buffers.

* Major rework to allow the TAB character in fields.

Two fixes by Patrick Welche, and two by me.

Fix some markup, add menus(3) to SEE ALSO.

generate & symbolically

Generate <>& symbolically.

Whitespace nits.

Added notes about differences between this libform and the original AT&T
implementation.

Add man pages for libform.