/usr/ is in libtest-leaktrace-perl 0.16-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.26/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Test/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Test/LeakTrace/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Test/LeakTrace/JA.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/Test/LeakTrace/Script.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Test/LeakTrace.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Test/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Test/LeakTrace/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Test/LeakTrace/LeakTrace.so
/usr/share/
/usr/share/doc/
/usr/share/doc/libtest-leaktrace-perl/
/usr/share/doc/libtest-leaktrace-perl/changelog.Debian.gz
/usr/share/doc/libtest-leaktrace-perl/copyright
/usr/share/doc/libtest-leaktrace-perl/examples/
/usr/share/doc/libtest-leaktrace-perl/examples/callback.pl
/usr/share/doc/libtest-leaktrace-perl/examples/leaked_refs.pl
/usr/share/doc/libtest-leaktrace-perl/examples/leaktrace.t
/usr/share/doc/libtest-leaktrace-perl/examples/method_cache.pl
/usr/share/doc/libtest-leaktrace-perl/examples/script.pl
/usr/share/doc/libtest-leaktrace-perl/examples/simple.pl
/usr/share/doc/libtest-leaktrace-perl/examples/test_fail.pl
/usr/share/doc/libtest-leaktrace-perl/examples/weakref.pl
/usr/share/man/
/usr/share/man/man3/
/usr/share/man/man3/Test::LeakTrace.3pm.gz