/usr/share/lintian/overrides/libkrb5-3 is in libkrb5-3 1.12.1+dfsg-19+deb8u4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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libkrb5-3: package-contains-empty-directory */plugins/krb5/