/usr/share/man/man1/Wand-config.1.gz is in graphicsmagick-libmagick-dev-compat 1.3.20-3+deb8u2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/GraphicsMagickWand-config.1.gz
/usr/share/man/man1/GraphicsMagickWand-config.1.gz