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

[wlemb]

Log from commit: 

Update of /var/cvs/groff/doc
In directory genba:/tmp/cvs-serv9930/doc

Modified Files:
        groff.texinfo 
Log Message:


* NEWS, man/groff_diff.man, man/groff.man, doc/groff.texinfo:
Document `.U' register.

* src/roff/troff/env.cpp (environment::mark_last_line)
[WIDOW_CONTROL]: Fix scope of `p' for new C++ compilers.

New read-only register `.U'; it returns 1 in safer mode and 0
otherwise.

* src/roff/troff/input.cpp (init_input_requests): Implement `.U'
register.