maximed/things: various things that don't have a repo of their own

Maxime Devos a0715e6758 Bind openat and other *at procedures		3 年之前
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GPL-3.0-or-later.txt	b0400ba06b Define interactive function for inserting Guix issue links	3 年之前
LGPL-3.0-or-later.txt	a0715e6758 Bind openat and other *at procedures	3 年之前