Resolve "HEPMC - Job Failed #34209"

Closes #12 (closed)

util/run_many.py

@@ -117,7 +117,7 @@ if __name__ == '__main__':
         ## check if we all exited nicely, else exit with status 1
         if not all(ret == 0 for ret in return_values):
             n_fail = sum([1 for ret in return_values if ret != 0])
-            print('ERROR, {} of {} jobs failed'.format(n_fail))
+            print('ERROR, {} of {} jobs failed'.format(n_fail), len(cmds))
             print('Return values:', [ret for ret in return_values if ret != 0])
             exit(1)