/usr/share/perl5/Perlbal/Manual/ is in libperlbal-perl 1.80-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Perlbal/Manual/Configuration.pod
/usr/share/perl5/Perlbal/Manual/Contributing.pod
/usr/share/perl5/Perlbal/Manual/Credits.pod
/usr/share/perl5/Perlbal/Manual/Debugging.pod
/usr/share/perl5/Perlbal/Manual/FailOver.pod
/usr/share/perl5/Perlbal/Manual/HighPriority.pod
/usr/share/perl5/Perlbal/Manual/Hooks.pod
/usr/share/perl5/Perlbal/Manual/Install.pod
/usr/share/perl5/Perlbal/Manual/Internals.pod
/usr/share/perl5/Perlbal/Manual/LoadBalancer.pod
/usr/share/perl5/Perlbal/Manual/Logging.pod
/usr/share/perl5/Perlbal/Manual/Management.pod
/usr/share/perl5/Perlbal/Manual/Plugins.pod
/usr/share/perl5/Perlbal/Manual/ReverseProxy.pod
/usr/share/perl5/Perlbal/Manual/Roles.pod
/usr/share/perl5/Perlbal/Manual/Selector.pod
/usr/share/perl5/Perlbal/Manual/WebServer.pod