hp2ps(1) on Linux
The text b94d37f1f2f9, as Debian 11 (Bullseye), Debian 10 (Buster) shipped it.
convert a heap profile to a POSTSCRIPT graph
Flags it lists
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-? -
-b -
-c -
-d -
-e -
-g -
-p -
-s -
-y