/usr/share/man/man3/tpmUnsealShred.3.gz is in libtpm-unseal-dev 1.3.9.1-0.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/tpmUnsealFile.3.gz
/usr/share/man/man3/tpmUnsealFile.3.gz