http://xray.mpe.mpg.de does not serve the mailing list archives anymore
and is not available via the Wayback machine either.
This patch restores the content of a link to an URL "we" hopefully control
better. The message ID correlates to a patch that git blame
identified as being replaced by the current state in the time range.
# which live dual lives on CPAN.
# Don't interfere with the taintedness of %ENV, this could perturbate tests.
# This feels like a better solution than the original, from
-# http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2003-07/msg00154.html
+# Message-ID: 20030703145818.5bdd2873.rgarciasuarez@free.fr
+# https://www.nntp.perl.org/group/perl.perl5.porters/2003/07/msg77533.html
$ENV{PERL_CORE} = $^X;
$0 =~ s/\.dp$//; # for the test.deparse make target