[perl #132896] timegm should be called with 4-digit year

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This is a bug report for perl from perl...@lsmod.de,
generated with the help of perlbug 1.39 running under perl 5.18.2.


-----------------------------------------------------------------
[Please describe your issue here]

timegm should be called with 4-digit year
to avoid ambiguities in Time::Local with 2-digit years

please review/test/merge this fix:

--- perl-5.26.1.orig/cpan/libnet/lib/Net/NNTP.pm
+++ perl-5.26.1/cpan/libnet/lib/Net/NNTP.pm
@@ -601 +601 @@ sub date {
-    ? timegm($6, $5, $4, $3, $2 - 1, $1 - 1900)
+    ? timegm($6, $5, $4, $3, $2 - 1, $1)


[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=library
    severity=low
    module=Net::NNTP
---
This perlbug was built using Perl 5.18.2 - Fri Nov 24 17:17:29 UTC 2017
It is being executed now by  Perl 5.18.2 - Fri Nov 24 17:15:01 UTC 2017.

Site configuration information for perl 5.18.2:

Configured by abuild at Fri Nov 24 17:15:01 UTC 2017.

Summary of my perl5 (revision 5 version 18 subversion 2) configuration:
   
  Platform:
    osname=linux, osvers=4.4.92-31-default, archname=x86_64-linux-thread-multi
    uname='linux build70 4.4.92-31-default #1 smp sun oct 22 06:56:24 utc 2017 (1d80e8a) x86_64 x86_64 x86_64 gnulinux '
    config_args='-ds -e -Dprefix=/usr -Dvendorprefix=/usr -Dinstallusrbinperl -Dusethreads -Di_db -Di_dbm -Di_ndbm -Di_gdbm -Dd_dbm_open -Duseshrplib=true -Doptimize=-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wall -pipe -Accflags=-DPERL_USE_SAFE_PUTENV -Dotherlibdirs=/usr/lib/perl5/site_perl -Dinc_version_list=5.18.0/x86_64-linux-thread-multi 5.18.0 5.18.1/x86_64-linux-thread-multi 5.18.1'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -fstack-protector -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wall -pipe',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -fstack-protector'
    ccversion='', gccversion='4.8.5', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib64 -fstack-protector'
    libpth=/lib64 /usr/lib64 /usr/local/lib64
    libs=-lm -ldl -lcrypt -lpthread
    perllibs=-lm -ldl -lcrypt -lpthread
    libc=/lib64/libc-2.22.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.22'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/usr/lib/perl5/5.18.2/x86_64-linux-thread-multi/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib64 -fstack-protector'

Locally applied patches:
    

---
@INC for perl 5.18.2:
    /home/bernhard/perl5/lib/perl5
    /home/bernhard/perl5/lib/perl5
    /usr/lib/perl5/site_perl/5.18.2/x86_64-linux-thread-multi
    /usr/lib/perl5/site_perl/5.18.2
    /usr/lib/perl5/vendor_perl/5.18.2/x86_64-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.18.2
    /usr/lib/perl5/5.18.2/x86_64-linux-thread-multi
    /usr/lib/perl5/5.18.2
    /usr/lib/perl5/site_perl

---
Environment for perl 5.18.2:
    HOME=/home/bernhard
    LANG=en_US.utf8
    LANGUAGE (unset)
    LC_CTYPE=en_DK.utf8
    LC_TIME=en_DK.utf8
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/bernhard/code/cvs/reproducible/reproducibleopensuse:/home/bernhard/perl5/bin:/home/bernhard/code/cvs/reproducible/reproducibleopensuse:/home/bernhard/perl5/bin:/home/bernhard/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games
    PERL5LIB=/home/bernhard/perl5/lib/perl5:/home/bernhard/perl5/lib/perl5
    PERL_BADLANG (unset)
    PERL_LOCAL_LIB_ROOT=/home/bernhard/perl5:/home/bernhard/perl5
    PERL_MB_OPT=--install_base "/home/bernhard/perl5"
    PERL_MM_OPT=INSTALL_BASE=/home/bernhard/perl5
    SHELL=/bin/bash