a pty.  Many operating systems have a limit of approximately 256 bytes
per line.

	is use change, not if they stay the same.

	himself to a conference.

	really should have a way to let it default to unset, so that a
	set-conf-type that only specifies four bits doesn't alter the
	remaining bits.

	and reserved3.

find_previous_text_no.

(find_previous_text_no): Fixed the returned error status.

	introduced when Local_to_global was introduced.
(copy_person): Likewise.
(copy_text_stat): Added a const qualifier.  Rewritten to decrease
	the probability that the same kind of bug is introduced here, that
	is, assign each field separately instead of assigning the entire
	struct at once.
(copy_aux_item_list): Now static.  Rewritten as above.
(coy_aux_item): Added const qualifier.  Rewritten as above.

(copy_text_stat): Likewise.
(copy_aux_item): Likewise.
(copy_aux_item_list): Removed (now static).

Local_to_global was introduced.