fix get_worker_test_list.py (#23842)

* fix get_worker_test_list.py

The test name is not always at the same index in the line, so pull
it from the regex instead.

scripts/xdist/get_worker_test_list.py

@@ -32,12 +32,12 @@ def main(log_file, test_suite):
     worker_test_dict = {}
     with io.open(log_file, 'r') as console_file:
         for line in console_file:
-            regex_search = re.search(r'\[gw(\d+)] (PASSED|FAILED|SKIPPED|ERROR)'.format(test_suite), line)
+            regex_search = re.search(r'\[gw(\d+)] (PASSED|FAILED|SKIPPED|ERROR) (\S+)'.format(test_suite), line)
             if regex_search:
                 worker_num_string = regex_search.group(1)
                 if worker_num_string not in worker_test_dict:
                     worker_test_dict[worker_num_string] = []
-                test = line.split()[2]
+                test = regex_search.group(3)
                 if test_suite == "commonlib-unit":
                     if "pavelib" not in test and not test.startswith('scripts'):
                         test = u"common/lib/{}".format(test)