(display_all, display_settings, display_window_size, set_window_size):
Remove fd arg, since we now assume stdin. All callers changed.
(main): Reuse stdin rather than opening a new one. This
saves a file descriptor.
Include fd-reopen.h.
(input_desc): Remove. All uses replaced by STDIN_FILENO.
(cwrite): Don't call fd_safer; no longer needed now that
we include fcntl--.h.
(main): Reuse stdin rather than opening a new one. This
saves a file descriptor.
Include stdlib--.h. Do not include unistd-safer.h.
(create_temp_file): Don't call fd_safer; no longer needed
now that we include *--.h files.
(xfopen): Don't call fopen_safer, for similar reasons.
Include unistd--.h, not unistd-safer.h.
(main): Use fd_reopen to simplify code. When replacing stdin,
use "/dev/null" not "/", as that's less likely to go wrong these days.
(main): Use dup, not dup_safer.
Include stdio--.h, not stdio-safer.h.
(input_desc): Remove. All uses changed to STDIN_FILENO.
(set_input_file): Reopen stdin, to simplify code.
(create_output_file): Use fopen, not fopen_safer.
(writeline): Remove stream arg; we now always output to stdout.
All callers changed.
(check_file): Reuse stdout rather than opening a new stream.
This saves a file descriptor.
when computing the --author column width. This bug might have
resulted in misaligned columns when using the --author option
on the Hurd. Spotted by Arnold Robbins.
The bug was introduced on 2003-12-03.
(struct duinfo): Remove 'valid' member. All uses changed to use
negative nsec instead.
(DUIINFO_INI, DUINFO_SET, DUINFO_ADD): Remove.
(duinfo_init, duinfo_set, duinfo_add): New functions, taking the
role of the removed macros.
(opt_time): Renamed from opt_last_time. All uses changed.
(TIME_OPTION): Renamed from LAST_TIME_OPTION. All uses changed.
(long_options, usage): Rename --last-time to --time.
(locale_time_style): Remove.
(time_style_args, time_style_types, usage): Remove support for
--time-style=locale.
(show_date): Now returns void, since nobody looked at the result.
Assume FORMAT is not null. An empty FORMAT now outputs an empty time.
Simplify nstrftime invocation.
(main): Put in ls compatibility workarounds only for TIME_STYLE,
not for --time-style. Omit unnecessary space in iso time style.
Paul Eggert