vendors/execa.js/processOk
    var processOk = function(process5) {
      return process5 && typeof process5 === "object" && typeof process5.removeListener === "function" && typeof process5.emit === "function" && typeof process5.reallyExit === "function" && typeof process5.listeners === "function" && typeof process5.kill === "function" && typeof process5.pid === "number" && typeof process5.on === "function";
    };