-\dt \cw{--ps}[\cw{=}\e{filename}]
-
-\dd Makes Halibut generate an output file in PostScript format. If
-the optional \e{filename} parameter is supplied, the PostScript
-output file will be given that name. Otherwise, the name of
-the output PostScript file will be as specified in the input files,
-or \c{output.ps} if none is specified at all.
-