/usr/lib/pd/extra/plugin~/plugin~-meta.pd is in pd-plugin 0.2.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #N canvas 15 49 200 200 10;
#N canvas 25 49 420 300 META 1;
#X text 10 25 AUTHOR Jarno Seppänen <jams@cs.tut.fi>;
#X text 10 10 VERSION 0.2.1;
#X restore 10 10 pd META;
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