[Groff-commit] Changes to //var/cvs/groff

[wlemb]

Log from commit: 

Update of /var/cvs/groff/src/roff/troff
In directory genba:/vol2/tmp/cvs-serv26831/src/roff/troff

Modified Files:
        env.cc env.h troff.man 
Log Message:
Adding the `linetabs' request.  If set, tab distances are not
computed relative to the input line but relative to the output line.

* src/roff/troff/env.h (environment): New member `line_tabs'.
* src/roff/troff/env.cc (line_tabs_request): Implement request.
(environment::environment, environment::copy): Updated.
(environment::distance_to_next_tab): Use `line_tabs'.
(init_env_requests): Register request.
* src/roff/troff/troff.man, man/groff.man, NEWS: Document it.  Other
fixes.