/usr/share/doc/glew-utils1.5/changelog.Debian.gz is in glew-utils1.5 1.5.7.is.1.5.2-1ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/glew-utils1.5/../libglew1.5/changelog.Debian.gz