Follow-up to r1575628: Reinstantiate code that got removed accidentally.
Follow-up to r1575628: Reinstantiate code that got removed accidentally.

* subversion/libsvn_fs_fs/index.c
  (l2p_page_info_copy): Actually read the page table entry.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1576801 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion