Clean up many of the reccommendations from jslint in the file.js library

lib/file.js

@@ -1,3 +1,6 @@
+/*jslint onevar: true, undef: true, eqeqeq: true, plusplus: true, regexp: true, newcap: true, immed: true */
+/*globals exports, node, __filename */
+
 exports.debugLevel = 0; // Increase to get more verbose debug output
 
 function debugMessage (msg) {
@@ -27,7 +30,7 @@ exports.write = function (filename, data, encoding) {
             node.fs.close(fd);
           })
           .addCallback(function (written) {
-            if (written == _data.length) {
+            if (written === _data.length) {
               node.fs.close(fd);
             } else {
               doWrite(_data.slice(written));
@@ -37,7 +40,7 @@ exports.write = function (filename, data, encoding) {
       doWrite(data);
     })
     .addErrback(function () {
-      promise.emitError()
+      promise.emitError();
     });
 
   return promise;
@@ -94,46 +97,48 @@ exports.File = function (filename, mode, options) {
 var proto = exports.File.prototype;
 
 proto._maybeDispatch = function () {
-  var self = this;
+  var self, args, method, promise, userPromise;
+
+  self = this;
 
-  if (self.currentAction) return;
+  if (self.currentAction) { return; }
   self.currentAction = self.actionQueue.shift();
-  if (!self.currentAction) return;
+  if (!self.currentAction) { return; }
 
   debugObject(self.currentAction);
 
-  var args = self.currentAction.args || [];
+  args = self.currentAction.args || [];
 
-  if (self.currentAction.method != "open") {
+  if (self.currentAction.method !== "open") {
     args.unshift(self.fd);
   }
 
-  var method = self.currentAction.method;
+  method = self.currentAction.method;
 
-  if (!args[3] && (method == "read" || method == "write")) {
+  if (!args[3] && (method === "read" || method === "write")) {
     args[3] = self.encoding;
   }
 
-  var promise = node.fs[method].apply(self, args);
+  promise = node.fs[method].apply(self, args);
 
-  var userPromise = self.currentAction.promise;
+  userPromise = self.currentAction.promise;
 
   promise.addCallback(function () {
-    node.assert(self.currentAction.promise == userPromise);
+    node.assert(self.currentAction.promise === userPromise);
     userPromise.emitSuccess.apply(userPromise, arguments);
     self.currentAction = null;
     self._maybeDispatch();
   }).addErrback(function () {
     debugMessage("Error in method " + method);
-    node.assert(self.currentAction.promise == userPromise);
+    node.assert(self.currentAction.promise === userPromise);
     userPromise.emitError.apply(userPromise, arguments);
     self.currentAction = null;
     self._maybeDispatch();
   });
 };
 
 proto._queueAction = function (method, args) {
-  var userPromise = new node.Promise;
+  var userPromise = new node.Promise();
   this.actionQueue.push({ method: method, args: args, promise: userPromise });
   this._maybeDispatch();
   return userPromise;