fixing some lint issues

test/streams/BaseRollingFileStream-test.js

@@ -73,14 +73,14 @@ describe('../../lib/streams/BaseRollingFileStream', function() {
     });
 
     it('should not want to roll', function() {
-      stream.shouldRoll().should.be.false;
+      stream.shouldRoll().should.eql(false);
     });
 
     it('should not roll', function() {
       var cbCalled = false;
       //just calls the callback straight away, no async calls
       stream.roll('basetest.log', function() { cbCalled = true; });
-      cbCalled.should.be.true;
+      cbCalled.should.eql(true);
     });
   });
 });

test/streams/DateRollingFileStream-test.js

@@ -178,14 +178,19 @@ describe('DateRollingFileStream', function() {
     var stream;
 
     before(function(done) {
-      testTime = new Date(2012, 8, 12, 0, 10, 12),
-      stream = new DateRollingFileStream(
-        __dirname + '/test-date-rolling-file-stream-pattern', 
-        '.yyyy-MM-dd', 
-        { alwaysIncludePattern: true }, 
-        now
+      testTime = new Date(2012, 8, 12, 0, 10, 12);
+      remove(
+        __dirname + '/test-date-rolling-file-stream-pattern.2012-09-12',
+        function() {
+          stream = new DateRollingFileStream(
+            __dirname + '/test-date-rolling-file-stream-pattern', 
+            '.yyyy-MM-dd', 
+            { alwaysIncludePattern: true }, 
+            now
+          );
+          stream.write("First message\n", 'utf8', done);
+        }
       );
-      stream.write("First message\n", 'utf8', done);
     });
 
     after(function(done) {

test/streams/rollingFileStream-test.js

@@ -14,7 +14,7 @@ if (semver.satisfies(process.version, '>=0.10.0')) {
 RollingFileStream = require('../../lib/streams').RollingFileStream;
 
 function remove(filename, cb) {
-  fs.unlink(filename, function() { cb(); });
+  fs.unlink(filename, function(err) { cb(); });
 }
 
 function create(filename, cb) {