/usr/share/ is in postgresql-pltcl-9.3 9.3.4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/postgresql-pltcl-9.3/
/usr/share/doc/postgresql-pltcl-9.3/copyright
/usr/share/postgresql/
/usr/share/postgresql/9.3/
/usr/share/postgresql/9.3/unknown.pltcl
/usr/share/postgresql/9.3/extension/
/usr/share/postgresql/9.3/extension/pltclu.control
/usr/share/postgresql/9.3/extension/pltcl.control
/usr/share/postgresql/9.3/extension/pltcl--1.0.sql
/usr/share/postgresql/9.3/extension/pltcl--unpackaged--1.0.sql
/usr/share/postgresql/9.3/extension/pltclu--1.0.sql
/usr/share/postgresql/9.3/extension/pltclu--unpackaged--1.0.sql
/usr/share/doc/postgresql-pltcl-9.3/changelog.Debian.gz