On the fsfs-format7 branch: fix an inefficiency in svn_io_file_aligned_seek
which often unnecessarily issues gets and seeks.

* subversion/libsvn_subr/io.c
  (svn_io_file_aligned_seek): fix test of aligned_offset being within
                              the current block


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1481447 13f79535-47bb-0310-9956-ffa450edef68