fix case for WeakMap build, error on missing file

dfreedm · dfreedm · commit b9ac3b9b4972 · 2013-09-17T10:48:28.000-07:00
diff --git a/build.json b/build.json
@@ -1,5 +1,5 @@
 [
-  "../WeakMap/WeakMap.js",
+  "../WeakMap/weakmap.js",
   "../observe-js/src/observe.js",
   "build/if-poly.js",
   "../ShadowDOM/build.json",
diff --git a/gruntfile.js b/gruntfile.js
@@ -39,7 +39,8 @@ module.exports = function(grunt) {
     concat_sourcemap: {
       Platform: {
         options: {
-          sourcesContent: true
+          sourcesContent: true,
+          nonull: true
         },
         files: {
           'platform.concat.js': readManifest('build.json')
