javahl: Properly canonicalize paths in SVNClient::streamFileContent.

* subversion/bindings/javahl/native/SVNClient.cpp
  (streamFileContent): Use the path we canonicalized.



git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1524869 13f79535-47bb-0310-9956-ffa450edef68