Bug#943724: lintian: internal error in Lintian::files::empty_package::_set_is_dummy

[Christian Göttsche <cgzones@googlemail.com>]

Package: lintian
Version: 2.30.0

While working on the logrotate package, lintian errored out:

$ lintian ../build-area/logrotate_3.15.1-2_amd64.changes
W: logrotate source: orig-tarball-missing-upstream-signature
logrotate_3.15.1.orig.tar.xz
W: logrotate source: spelling-error-in-patch-description
debian/patches/0010-testsuite-remove-explicit-group-and-other-write-perm.patch
genrated generated
Usage: Lintian::files::empty_package::_set_is_dummy(self, newvalue) at
/usr/share/lintian/checks/files/empty-package.pm line 42.
internal error: cannot run files check on package
binary:logrotate-dbgsym/3.15.1-2/amd64
warning: skipping check of binary:logrotate-dbgsym/3.15.1-2/amd64
Usage: Lintian::files::empty_package::_set_is_dummy(self, newvalue) at
/usr/share/lintian/checks/files/empty-package.pm line 42.
internal error: cannot run files check on package
binary:logrotate/3.15.1-2/amd64
warning: skipping check of binary:logrotate/3.15.1-2/amd64