/usr/lib/pd/extra/pddp/open-help.pd is in pd-pddp 0.2.1-1.
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 7 8 9 10 | #N canvas 176 296 462 312 10;
#X text 48 47 open the specified file on the click of the button:;
#X text 66 200 only relative paths work \, no absolute.;
#X text 29 241 for better or worse \, the .pd is automatically appended
;
#X obj 56 78 pddp/open dsp-help;
#X text 19 9 BUG: relative paths now work \, but files with no path
don't;
#X obj 57 107 pddp/open dsp-help;
#X obj 57 137 pddp/open ../../3.audio.examples/F02.just.say;
|