AMBARI-8498. Run HDFS as non-root (aonishuk)

ambari-agent/src/test/python/resource_management/TestExecuteResource.py

@@ -176,7 +176,7 @@ class TestExecuteResource(TestCase):
                                  environment={'JAVA_HOME': '/test/java/home',
                                               'PATH': "/bin"}
       )
-    expected_command = ['/usr/bin/sudo', '-Hi', 'su', '-', 'test_user', '-s', '/bin/bash', '-c', 'export  PATH=' + os.environ['PATH'] + ':/bin JAVA_HOME=/test/java/home ; echo "1"']
+    expected_command = ['/usr/bin/sudo', '-Hi', 'su', 'test_user', '-', '-s', '/bin/bash', '-c', 'export  PATH=' + os.environ['PATH'] + ':/bin JAVA_HOME=/test/java/home ; echo "1"']
     self.assertEqual(popen_mock.call_args_list[0][0][0], expected_command)