[Groff] option to set output file name

[Michail Vidiassov]

Dear All,

may be I am missing something trivial, but I can not find a command-line 
switch in groff to direct output to file.

Output redirection is no problem in shell scripts, but if groff is to be 
spawned from another program it becomes a problem, either you spawn a 
shell runing a script or spawn groff and have to bother with piping 
output. You can not just fire off groff and forget about it. What a miss :(

 Sincerely, Michail