well, you don't need to install the module at all, just copy the file OpenSSH.pm to, for instance, /tmp/Net/OpenSSH.pm and then run your program as perl -I/tmp script.pl.
update: or just install the new Net::OpenSSH 0.56_01 that I have just uploaded to CPAN.
Comment on Re^7: Net::OpenSSH premature session termination