/usr/share/lintian/overrides/mercurial is in mercurial 2.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # The hg(1) man page is installed by mercurial-common.
binary-without-manpage usr/bin/hg
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