add do1-do7 di1 procfs

hc

2023-10-12 3124110e504ba82e43686669ed7188bcdbe72744

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# Locally computed:
sha256  8f6a9e7719d22004aee153db29ffd9ca41c7a6cd87fc791591994eecc2e625a1  ltris-1.0.19.tar.gz