Correct the JIRA ref

Author: dlzhry2nhs

filenameprocessor/tests/test_lambda_handler.py

@@ -253,7 +253,7 @@ def test_lambda_handler_existing_file(self):
 
     def test_lambda_handler_correctly_flags_empty_file(self):
         """
-        VED-745 Tests that for an empty batch file:
+        VED-757 Tests that for an empty batch file:
         * The file status is updated to 'Not processed - empty file' in the audit table
         * The message is not sent to SQS
         * The failure inf_ack file is created