[doc] Export the module appropriately.

John Vilk · John Vilk · commit 944db4534379 · 2016-02-08T11:40:57.000-05:00
diff --git a/lib/diff_file.js b/lib/diff_file.js
@@ -36,3 +36,5 @@ var size = DiffFile.prototype.size;
  * @return {Number}
  */
 DiffFile.prototype.size = size;
+
+exports.module = DiffFile;
