am aec3e36f: am 2d817f75: Free scanBuf in ZipFileRO

Merge commit 'aec3e36fd4f8cdcc53110bbcd7f0afa20bf315d4'

* commit 'aec3e36fd4f8cdcc53110bbcd7f0afa20bf315d4':
  Free scanBuf in ZipFileRO