PYTHON-1060 - Remove command document repr from exception messages

Author: behackett

pymongo/network.py

@@ -96,9 +96,7 @@ def command(sock, dbname, spec, slave_ok, is_mongos,
 
  response_doc = unpacked['data'][0]
  if check:
- msg = "command %s on namespace %s failed: %%s" % (
- repr(spec).replace("%", "%%"), ns)
- helpers._check_command_response(response_doc, msg, allowable_errors)
+ helpers._check_command_response(response_doc, None, allowable_errors)
  except Exception as exc:
  if publish:
  duration = (datetime.datetime.now() - start) + encoding_duration