Run jshint over all JavaScript files

ports/quakespasm/quakespasm.js

 /*
  * Copyright (c) 2014 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+/* globals zip */
+
+'use strict';
+
 var PAK_FILE = 'id1/pak0.pak';
 
 function updateStatus(message) {
   document.getElementById('status').innerHTML += message + '<br />';
 }
 
 /*
  * Creates and add to the DOM the NaCl embed tag which
  * in effect launches Quake.
  */
@@ skipping 42 matching lines @@
   updateStatus('Extracting file: ' + file.name);
   zip.createReader(new zip.BlobReader(file),
     function(zipReader) {
       zipReader.getEntries(function(entries) {
         extractNextEntry(entries, 0, filesystem, oncomplete);
       });
     },
     function() {
       updateStatus('Error reading zip file');
     }
-  )
+  );
 }
 
 function uploadDidChange(event) {
   function oncomplete() {
     // Once we have extracted all the files then
     // launch the game.
     updateStatus("Extracted all file. Launching Quake.");
     runQuake('/tmp');
   }
 
   window.webkitRequestFileSystem(window.TEMPORARY, 50 * 1024 * 1024,
     function(fs) {
       var file = event.target.files[0];
       extractZipFile(file, fs, oncomplete);
     },
     function() {
       updateStatus('Error accessing html5 filesystem.');
     }
   );
 }
 
 function loadFromLocalStorage() {
   function loadFailure() {
     updateStatus('Quake data not found in local html5 filesystem.');
-    updateStatus('Please locate a quake level set (for example the '
-      + '<a href="http://www.libsdl.org/projects/quake/data/quakesw-1.0.6.zip">'
-      + 'shareware levels</a>) and either extract them alongside the nmf file,'
-      + ' or use the upload button below to unzip them in the local html5'
-      + ' filesystem.');
+    updateStatus('Please locate a quake level set (for example the ' +
+      '<a href="http://www.libsdl.org/projects/quake/data/quakesw-1.0.6.zip">' +
+      'shareware levels</a>) and either extract them alongside the nmf file,' +
+      ' or use the upload button below to unzip them in the local html5' +
+      ' filesystem.');
     // Create an html5 file input elemnt in so the user can upload the game
     // data as a zip file.
     document.getElementById('quake').innerHTML =
       '<input type="file" accept="application/zip" id="infile">';
     document.getElementById('infile').addEventListener('change',
                                                        uploadDidChange,
                                                        false);
   }
 
   function loadSuccess() {
@@ skipping 21 matching lines @@
       loadFromLocalStorage();
     }
   };
   req.open('GET', PAK_FILE);
   req.send(null);
 }
 
 window.onload = function() {
   onLoad();
 };