tools using dpkg-buildpackage like pbuilder or the official buildd build logs)
to help maintainers detect missing hardening flags in their packages.
+If there's no output, no flags are missing and the build log is fine.
+
=head1 OPTIONS
=over 8
blhc path/to/log/file
+If there's no output, no flags are missing and the build log is fine.
+
Parse multiple log files. The exit code is ORed over all files.
blhc path/to/directory/with/log/files/*