Try to manually copy environment variables from the parent in run-tests-jenkins.py (#22)

Author: HyukjinKwon

dev/run-tests-jenkins.py

@@ -121,7 +121,8 @@ def run_tests(tests_timeout):
 
     test_result_code = subprocess.Popen(['timeout',
                                          tests_timeout,
-                                         os.path.join(SPARK_HOME, 'dev', 'run-tests')]).wait()
+                                         os.path.join(SPARK_HOME, 'dev', 'run-tests')],
+                                        env=dict(os.environ)).wait()
 
     failure_note_by_errcode = {
         # error to denote run-tests script failures: