[?BUG] package.json -> process.env - Array is smashed, while object can be deep

[askirmas]

What is the purpose of this decision?

run-script/test/package-envs.js

Lines 29 to 30 in 7e7b52a

	npm_package_config_nested_object_is_included: 'true',
	npm_package_engines: 'array\n\nof\n\nstrings',

run-script/lib/package-envs.js

Lines 11 to 14 in 7e7b52a

	else if (val && !Array.isArray(val) && typeof val === 'object')
	packageEnvs(env, val, `${prefix}${key}_`)
	else
	env[`${prefix}${key}`] = envVal(val)

Related: npm/cli#3775

[lukekarrys]

Fixed by #194