/usr/lib/x86_64-linux-gnu/perl5/5.26/ is in libsys-gamin-perl 0.1-2build4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.26/Sys/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Sys/Gamin.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/Gamin.so
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/autosplit.ix
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/cancel.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/check_monitored.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/monitor.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/monitored.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/new.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/next_event.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/pending.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/resume.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/suspend.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/suspended.al
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Sys/Gamin/which.al