/etc/lldpd.d/README.conf is in lldpd 0.7.11-2+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # You can put lldpd configuration snippets into this directory.
# See lldpcli(8) for more details.
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