[KEYCLOAK-5062] keycloak-auth-utils returns incorrect error message with Node.js 4.4
[KEYCLOAK-5062] keycloak-auth-utils returns incorrect error message with Node.js 4.4

abstractj/keycloak-nodejs-auth-utils,keycloak/keycloak-nodejs-auth-utils,abstractj/keycloak-nodejs-auth-utils,keycloak/keycloak-nodejs-auth-utils