am 995b5ae8: Merge "Remove unused limits.h include and fix sys/mman.h include comment."

Merge commit '995b5ae8fc12df378dc4f228c86ab5f5bcb3a1a2' into dalvik-dev

* commit '995b5ae8fc12df378dc4f228c86ab5f5bcb3a1a2':
  Remove unused limits.h include and fix sys/mman.h include comment.