/usr/share/man/man1/mikmatch_str.1.gz is in libmikmatch-ocaml-dev 1.0.7-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/mikmatch_pcre.1.gz
/usr/share/man/man1/mikmatch_pcre.1.gz