Replace ChanType.sepfds with Channel.bidir_fd This handles the case where a svrchansess has separate FDs for nopty, but a single FD for pty mode. The use of sepfds was also previously incorrect for X11 and agent forwarding

#!/bin/bash
if cvs log $1 >/dev/null 2>/dev/null; then exit 0; else echo "$1 shouldn't be here, removed"; rm -f $1 ; fi