child_process: fix js lint err #27

Job	Run time
Build slim tarball	2m 0s
x86_64-darwin: with shared libraries	3h 4m 36s
aarch64-darwin: with shared libraries	1h 50m 3s
x86_64-linux: with shared libraries	1h 44m 43s
aarch64-linux: with shared libraries	1h 23m 57s
	8h 5m 19s

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