/usr/lib/pd/extra/ggee/sl-help.pd is in pd-ggee 0.26-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#N canvas 1 52 450 300 10; #X obj 140 126 sl; #X text 54 47 placeholder help patch;