/usr/share/man/ is in mingw32-binutils 2.25-5+5.2+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/man/man1/
/usr/share/man/man1/i586-mingw32msvc-nm.1.gz
/usr/share/man/man1/i586-mingw32msvc-ld.1.gz
/usr/share/man/man1/amd64-mingw32msvc-nm.1.gz
/usr/share/man/man1/i586-mingw32msvc-strings.1.gz
/usr/share/man/man1/i586-mingw32msvc-strip.1.gz
/usr/share/man/man1/amd64-mingw32msvc-objdump.1.gz
/usr/share/man/man1/amd64-mingw32msvc-strings.1.gz
/usr/share/man/man1/i586-mingw32msvc-dlltool.1.gz
/usr/share/man/man1/i586-mingw32msvc-addr2line.1.gz
/usr/share/man/man1/amd64-mingw32msvc-windmc.1.gz
/usr/share/man/man1/i586-mingw32msvc-objdump.1.gz
/usr/share/man/man1/amd64-mingw32msvc-addr2line.1.gz
/usr/share/man/man1/i586-mingw32msvc-c++filt.1.gz
/usr/share/man/man1/amd64-mingw32msvc-dllwrap.1.gz
/usr/share/man/man1/i586-mingw32msvc-dllwrap.1.gz
/usr/share/man/man1/amd64-mingw32msvc-ranlib.1.gz
/usr/share/man/man1/i586-mingw32msvc-readelf.1.gz
/usr/share/man/man1/amd64-mingw32msvc-readelf.1.gz
/usr/share/man/man1/amd64-mingw32msvc-ld.1.gz
/usr/share/man/man1/amd64-mingw32msvc-gprof.1.gz
/usr/share/man/man1/i586-mingw32msvc-objcopy.1.gz
/usr/share/man/man1/i586-mingw32msvc-windres.1.gz
/usr/share/man/man1/amd64-mingw32msvc-strip.1.gz
/usr/share/man/man1/i586-mingw32msvc-ar.1.gz
/usr/share/man/man1/amd64-mingw32msvc-size.1.gz
/usr/share/man/man1/amd64-mingw32msvc-dlltool.1.gz
/usr/share/man/man1/i586-mingw32msvc-size.1.gz
/usr/share/man/man1/amd64-mingw32msvc-as.1.gz
/usr/share/man/man1/i586-mingw32msvc-as.1.gz
/usr/share/man/man1/amd64-mingw32msvc-objcopy.1.gz
/usr/share/man/man1/amd64-mingw32msvc-ar.1.gz
/usr/share/man/man1/i586-mingw32msvc-ranlib.1.gz
/usr/share/man/man1/amd64-mingw32msvc-c++filt.1.gz
/usr/share/man/man1/i586-mingw32msvc-windmc.1.gz
/usr/share/man/man1/i586-mingw32msvc-gprof.1.gz
/usr/share/man/man1/amd64-mingw32msvc-windres.1.gz