lib,test: fix jsdoc comments #1228

Job	Run time
Build slim tarball	1m 34s
x86_64-linux: with shared libraries	29m 50s
aarch64-linux: with shared libraries	25m 18s
x86_64-darwin: with shared libraries	51m 46s
aarch64-darwin: with shared libraries	30m 41s
	2h 19m 9s

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