/usr/share/doc/ is in tcl-thread 1:2.7.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/tcl-thread/
/usr/share/doc/tcl-thread/examples/
/usr/share/doc/tcl-thread/examples/README
/usr/share/doc/tcl-thread/examples/cmdsrv/
/usr/share/doc/tcl-thread/examples/cmdsrv/cmdsrv.tcl
/usr/share/doc/tcl-thread/examples/phttpd/
/usr/share/doc/tcl-thread/examples/phttpd/uhttpd.tcl
/usr/share/doc/tcl-thread/examples/phttpd/index.htm
/usr/share/doc/tcl-thread/examples/phttpd/phttpd.tcl
/usr/share/doc/tcl-thread/examples/tpool/
/usr/share/doc/tcl-thread/examples/tpool/tpool.tcl
/usr/share/doc/tcl-thread/README
/usr/share/doc/tcl-thread/copyright
/usr/share/doc/tcl-thread/README.Debian
/usr/share/doc/tcl-thread/changelog.Debian.gz