/usr/share/lintian/overrides/dbus-x11 is in dbus-x11 1.8.22-0+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # false positive: we only say dbus when talking about a package name
dbus-x11: capitalization-error-in-description dbus D-Bus
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