/usr/share/bug/xserver-xorg-video-openchrome/script is in xserver-xorg-video-openchrome 1:0.2.904+svn1050-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/bug/xserver-xorg-video-openchrome/../xserver-xorg-core/script