Update to 0.005

Upstream changes:
version 0.005; 2023-03-13

  * port chat2.pl and validate.pl to Perl 5.19.8, which abolished the
    "do" syntax for subroutine calls, after it had started warning by
    default in Perl 5.11.1

  * port abbrev.pl, bigfloat.pl, bigint.pl, bigrat.pl, cacheout.pl,
    chat2.pl, complete.pl, exceptions.pl, ftp.pl, getcwd.pl, pwd.pl,
    and syslog.pl to Perl 5.37.9, which deprecated the old "'" package
    separator

  * muffle ambiguity warnings that arose under -w from ambiguous use of
    keywords "open", "close", and "select"

  * make the tests in t/timelocal.t robust against the way
    Time::Local::time{local,gm}() interpret year inputs 0 to 99 based
    on a sliding window

  * make the tests in t/timelocal.t accommodate OS-dependent limits on
    the range of years that can be represented in a time_t

  * update chat2.pl, ftp.pl, and syslog.pl to get constants from
    the Socket and Sys::Syslog modules, rather than from socket.ph,
    sys/socket.ph, and syslog.ph, which may well not be available

  * test that all the library files can be loaded without causing
    unintended warnings

  * update usage comments in getopt.pl, getopts.pl, stat.pl, syslog.pl,
    and validate.pl for Perl 5.19.8, which abolished the "do" syntax
    for subroutine calls

  * document that the core try/catch mechanism (from Perl 5.33.7) is
    another alternative to exceptions.pl

  * in t/timelocal.t, apply most tests to both timelocal() and timegm()

  * in t/timelocal.t, test error for 2100-02-29

  * in t/timelocal.t, don't load the unused Config module


(wen)