/usr/lib/pd/extra/ext13/ext13-meta.pd is in pd-ext13 0.17.1-2.
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 6 | #N canvas 15 49 200 200 10;
#N canvas 25 49 420 300 META 1;
#X text 13 41 NAME ext13;
#X text 10 25 AUTHOR d13@klingt.org;
#X text 10 10 VERSION 0.17.1;
#X restore 10 10 pd META;
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