generate.pl: Add patch for Time::Local on perls between 5.26 - 5.30

- https://github.com/Perl/docker-perl/issues/76
- https://github.com/Perl/perl5/issues/17410

For current-supported perls, only 5.28 is affected.

generate.pl

@@ -6,6 +6,8 @@ use YAML::XS;
 use Devel::PatchPerl;
 use LWP::Simple;
 
+use version 0.77;
+
 sub die_with_sample {
   die <<EOF;
 
@@ -80,6 +82,9 @@ my $template = do {
   <DATA>;
 };
 
+# fetch Time-Local test patch for fixing failures upon entering year 2020
+my $time_local_patch = get 'https://rt.cpan.org/Public/Ticket/Attachment/1776857/956088/0001-Fix-Time-Local-tests.patch';
+
 my %builds;
 
 # sha256 taken from http://www.cpan.org/authors/id/M/MI/MIYAGAWA/CHECKSUMS
@@ -179,6 +184,14 @@ for my $release (@{$config->{releases}}) {
         print $fh $patch;
       }
 
+      # Install additional patch for Time::Local on perls between 5.26 to 5.30
+      if ( version->parse("v$release->{version}") >= version->parse('v5.26.0')
+        && version->parse("v$release->{version}") < version->parse('v5.30.0'))
+      {
+        open my $fh, '>', "$dir/Fix-Time-Local-tests.patch";
+        print $fh $time_local_patch;
+      }
+
       if (defined $release->{test_parallel} && $release->{test_parallel} eq "no") {
         $output =~ s/\{\{test\}\}/make test_harness/;
       }