tests: ignore coverage on function invoked in uncovered versions

Author: dougwilson

lib/protocol/sequences/Sequence.js

@@ -3,6 +3,7 @@ var EventEmitter   = require('events').EventEmitter;
 var Packets        = require('../packets');
 var ErrorConstants = require('../constants/errors');
 
+// istanbul ignore next: Node.js < 0.10 not covered
 var listenerCount = EventEmitter.listenerCount
   || function(emitter, type){ return emitter.listeners(type).length; };