Update request_fragment_check.py

Committing directly an urgent fix to wget the dataset naming script

bin/utils/request_fragment_check.py

@@ -14,6 +14,8 @@
 import subprocess
 from datetime import datetime
 from json import dumps
+
+os.popen('wget -q https://raw.githubusercontent.com/cms-sw/genproductions/master/bin/utils/check_dataset_names.py -O check_dataset_names.py').read()
 from check_dataset_names import *