setting options.timestamp to true if not passed. Keep compatibility with winston-file-transport

Author: Matt Berther

index.js

@@ -72,7 +72,7 @@ var DailyRotateFile = module.exports = function (options) {
   this.label = options.label || null;
   this.prettyPrint = options.prettyPrint || false;
   this.showLevel = options.showLevel === undefined ? true : options.showLevel;
-  this.timestamp = options.timestamp || null;
+  this.timestamp = options.timestamp || true;
   this.datePattern = options.datePattern ? options.datePattern : '.yyyy-MM-dd';
   this.depth = options.depth || null;
   this.eol = options.eol || os.EOL;

test/simple.tests.js

@@ -364,7 +364,7 @@ describe('winston/transports/daily-rotate-file', function () {
             filename: path.join(rotationLogPath, 'test-rotation.log'),
             datePattern: dailyRotationPattern.pattern,
             maxFiles: 2,
-            maxsize: 50
+            maxsize: 100
           });
 
           done();