* subversion/libsvn_subr/io.c
  (contents_three_identical_p): Fixed incorrect pointer check against NULL,
   when the purpose was actually to check the value stored at that pointer
   for true or false. There is no change in the output of the function but
   it avoids some disk IO.

Patch by: eric{_AT_}lubin.us


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1548486 13f79535-47bb-0310-9956-ffa450edef68