Log message:
mdocml-1.9.13:
- added: -fign-escape
- fix: -Thtml accessibility (identifiers, table summary, etc.)
- fix: -Tascii -mdoc segfault with specific `Bl -hang' lists
- portability: bzero() -> memset()
- portability: warnx -> fprintf/perror
- fix: -Thtml buffer munging with certain tags
- fix: -Thtml output of some tags (empty divs, etc.)
- portability: compiler attributes
- documentation: significant man.7 and mdoc.7 improvements
- allowing compile-time setting of operating system (-DOSNAME=xxx)
- added `PD' and `%U'
- more mdoc.7 updates
- switched from `-ooptions' to `-Ooptions'
- inclusion of DragonFlyBSD into rendered manuals

Log message:
mdocml-1.9.9:
- improve scaling support
- expand man(7) and mdoc(7)

Log message:
Update to mdocml-1.9.8:
- Improvements for various man(7) and mdoc(7) tags
- Initial support for scaling factors
- HTML output
- Much linting

Log message:
mdocml-1.9.2:
A number of small bugfixes and support for .UC.

Log message:
Update to mdocml-1.9.1:
- more relaxed next-line libman parsing (dupes pruned)
- added `DT' and `RS' libman macros
- fixed next-line scoping issues to better emulate groff

Log message:
Update to mdocml-1.9.0:
- libman exports a considerably more structured AST
- libmdoc has much cleaner macro-calling semantics
- support for various new macros

Log message:
Update to mdocml-1.8.0:
  - significant cleanups in mdoc_term.c
  - support for XXn and XXm -offset values
  - removed exposure of some libmdoc functions from mdoc.h
  - fixed presentation of `Fo', `Vt'
  - fixes for clarity in mdoc.7

Log message:
Update to modcml-1.7.23.  A number of whitespace related optimisations,
some bugfixes and a lot of cleanups.

Log message:
Update to mdocml-1.7.12. Biggest change is the start of a man(7) parser.

Log message:
Update to mdocml 1.6.9. Much improved support for mdoc features and
new frontend command that can act as drop-in replacement for nroff(1)
for mdoc pages.