$rfh = new IO::File;
$wfh = new IO::File;
$pid = open2($rfh, $wfh, "$line") or die "can't do $line $!";
+ die "no receive channel $!" unless $rfh;
+ die "no transmit channel $!" unless $wfh;
dbg('connect', "got pid $pid");
$wfh->autoflush(1);
} else {