refactor(wrapQuery): fix continuation type

Author: Dávid Szakállas

lib/instrumentations/utils/wrapQuery.js

@@ -7,7 +7,7 @@ function wrapQuery (original, args, agent, params) {
   var _params = params || {}
   var collector = agent.tracer.collector
   var externalEdgeMetrics = agent.externalEdgeMetrics
-  var continuationMethod = _params.continuationMethod || false // promise || readStream || callback
+  var continuationMethod = _params.continuationMethod // promise || readStream || callback
 
   var reporter = {
     reportSend: function () {