Fixing environment being passed to exec auth

Author: codertao

lib/auth/exec.js

@@ -34,7 +34,11 @@ class ExecAuth {
       promise = Promise.resolve(this.auth_provider);
     } else {
       promise = new Promise((resolve, reject) => {
-        const process = execFile(this.auth_provider.command, this.auth_provider.args , {'env' : this.auth_provider.env}, (error, stdout, stderr) => {
+        const env = {};
+        if(this.auth_provider.env) {
+          this.auth_provider.env.forEach(kvp => env[kvp.name] = kvp.value);
+        }
+        const process = execFile(this.auth_provider.command, this.auth_provider.args , { env }, (error, stdout, stderr) => {
           cancel = function (){};
           if (error) {
             reject(error);