Where can I find the "set" options for OSQL?

I am running OSQL with the -o filename option, and the result contains the
column names and multiple lines when I need one long line per row returned.
I need to turn-off the headings for an OSQL session. I also need to widen the
linesize as well. I suspect there is a "set" option for each of these, but
who knows. Any suggestions?

Where is this documented?
.