Fix the bug that untracked files under subdirectories are not removed.

Author: domchen

package.json

@@ -1,6 +1,6 @@
 {
   "name": "depsync",
-  "version": "1.3.11",
+  "version": "1.3.12",
   "author": "Dom Chen",
   "homepage": "http://www.idom.me/",
   "description": "Automatically synchronize the dependencies of a project by the DEPS configuration file.",

src/tasks/RepoTask.js

@@ -79,7 +79,7 @@ RepoTask.prototype.run = function (callback) {
     Utils.exec("git fetch --depth 1 origin " + item.commit, item.dir);
     Utils.movePath(tempLFSDir, lfsBakDir);
     process.env["GIT_LFS_SKIP_SMUDGE"] = "1";
-    Utils.exec("git reset --hard FETCH_HEAD && git clean -f -q", item.dir);
+    Utils.exec("git reset --hard FETCH_HEAD && git clean -df -q", item.dir);
     callback && callback();
 };