Subject: | Unescaped left brace in regex is illegal here in regex |
With perl 5.25.4 I see the following error while running the test suite:
Unescaped left brace in regex is deprecated here, passed through in regex; marked by <-- HERE in m/^{ <-- HERE \d+/\d+}\n/ at /tmpfs/.cpan-build-cpansand/2016090406/App-USBKeyCopyCon-1.02-0/blib/lib/App/USBKeyCopyCon.pm line 1022.