perl-Mail-Box-3.009-8.fc39 fails to build from sources in Fedora 39 because a tests fails: $ perl -Ilib t/501parser-head.t 1..16 ok 1 ok 2 ok 3 ok 4 ok 5 ok 6 ok 7 ok 8 ok 9 ok 10 ok 11 ok 12 ok 13 not ok 14 # Failed test at t/501parser-head.t line 47. # got: '(from majordomo@localhost) by unca-don.wizards.dupont.com (8.9.3/8.9.3) id PAA29389 for magick-outgoing' # expected: '(from majordomo@localhost) by unca-don.wizards.dupont.com (8.9.3/8.9.3) id PAA29389 for magick-outgoing' ok 15 ok 16 - X-foo ok # Looks like you failed 1 test of 16. This is triggered by upgrading perl-Mail-Message from 0:3.012-5.fc39 to 0:3.013-1.fc39: version 3.013: Sat 24 Jun 17:25:11 CEST 2023 Changes: - In header lines, leave the actual white-space related to FWS intact. You may want to add s/\t/ / before you print a header. GitHub#7 [Jacob Balazer]