Merge pull request #3918 from hove-io/fix_function_trace

NR: fix send_and_receive

Author: azime

source/jormungandr/newrelic.ini

@@ -154,7 +154,7 @@ transaction_tracer.explain_threshold = 0.5
 # Space separated list of function or method names in form
 # 'module:function' or 'module:class.function' for which
 # additional function timing instrumentation will be added.
-transaction_tracer.function_trace = jormungandr.instance:Instance._send_and_receive flask_restful:marshal navitiacommon.response_pb2:Response.ParseFromString jormungandr.scenarios.new_default:Scenario.call_kraken jormungandr.scenarios.default:Scenario.call_kraken
+transaction_tracer.function_trace = jormungandr.instance:Instance.send_and_receive flask_restful:marshal navitiacommon.response_pb2:Response.ParseFromString jormungandr.scenarios.new_default:Scenario.call_kraken jormungandr.scenarios.default:Scenario.call_kraken
 
 # The error collector captures information about uncaught
 # exceptions or logged exceptions and sends them to UI for