tools: copyedit Nix files #2455

Job	Run time
Build slim tarball	1m 43s
aarch64-linux: with shared libraries	22m 40s
x86_64-darwin: with shared libraries	38m 53s
aarch64-darwin: with shared libraries	31m 14s
x86_64-linux: with shared libraries	32m 47s
	2h 7m 17s

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