Update exporter/replset_config_collector_test.go

Author: BupycHuk

exporter/replset_config_collector_test.go

@@ -40,7 +40,7 @@ func TestReplsetConfigCollector(t *testing.T) {
 
 	// The last \n at the end of this string is important
 	expected := strings.NewReader(`
-	# HELP mongodb_rs_cfg_protocolVersion cfg.
+	# HELP mongodb_rs_cfg_protocolVersion rs_cfg.
 	# TYPE mongodb_rs_cfg_protocolVersion untyped
 	mongodb_rs_cfg_protocolVersion 1` + "\n")
 	// Filter metrics for 2 reasons: