* 'lsfd--tty' of https://github.com/masatake/util-linux:
tests: (lsfd) add a case testing NAME, SOURCE, ENDPOINTS, and PTMX.TTY-INDEX columns of pts fds
tests: (test_mkfds::pty) add a new factory
lsfd: fill ENDPOINTS column for pty devices
lsfd: add attach_xinfo and get_ipc_class methods to cdev_ops
lsfd: add PTMX.TTY-INDEX column
lsfd: utilize /proc/tty/drivers for filling SOURCE column of tty devices
lsfd: make the order of calling finalize_* and initialize_* consistent