Function init

test/nodes/core/sequence/17-split_spec.js:1272–1275

(node, cb)

    it('should reduce messages with init types (env)', function(done) {
        function init(node, cb) {
            process.env.NR_XYZ = "nr_xyz";
            cb();
        }
        function fin(err) {
            delete process.env.NR_XYZ;
            done(err);