!101 IssueNo:#I3OGBI optimize symlink copy for file system generate prodedure

Merge pull request !101 from yangming_ha/master

hb/build/fs_process.py

@@ -107,7 +107,7 @@ class Packer():
                 makedirs(target_path)
                 self.chmod_dirs.append((target_path, dir_mode))
             tfile = os.path.join(target_path, os.path.basename(source_path))
-            shutil.copy(sfile, tfile)
+            shutil.copy(sfile, tfile, follow_symlinks=False)
             self.chmod_dirs.append((tfile, file_mode))
 
         if os.path.isfile(spath):