On the fsfs-format7 branch: follow-up to r1433848.

* subversion/include/svn_io.h
  (svn_io_file_create): actually deprecate


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1438408 13f79535-47bb-0310-9956-ffa450edef68