/usr/share/lintian/overrides/libqt5dbus5 is in libqt5dbus5 5.2.1+dfsg-1ubuntu14.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # This dependency has been added to track external packages building against
# our private headers. It is ok if internal packages depend on the ABI one.
libqt5dbus5: symbols-declares-dependency-on-other-package qtbase-abi-5-2-1
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