/usr/share/doc/ is in libzip-ocaml-dev 1.05-3.
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/usr/share/doc/libzip-ocaml-dev/
/usr/share/doc/libzip-ocaml-dev/html/
/usr/share/doc/libzip-ocaml-dev/html/api/
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/usr/share/doc/libzip-ocaml-dev/changelog.gz
/usr/share/doc/libzip-ocaml-dev/examples/
/usr/share/doc/libzip-ocaml-dev/examples/testzlib.ml
/usr/share/doc/libzip-ocaml-dev/examples/Makefile
/usr/share/doc/libzip-ocaml-dev/examples/minizip.ml
/usr/share/doc/libzip-ocaml-dev/examples/minigzip.ml
/usr/share/doc/libzip-ocaml-dev/README
/usr/share/doc/libzip-ocaml-dev/changelog.Debian.gz
/usr/share/doc/libzip-ocaml-dev/copyright