/usr/share/man/man3/XcursorLibraryLoadCursor.3.gz is in libxcursor-dev 1:1.1.14-1+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man3/Xcursor.3.gz
/usr/share/man/man3/Xcursor.3.gz