Make JavaHL tests pass when the test work directory is on a RAM disk.

* subversion/bindings/javahl/tests/org/apache/subversion/javahl/BasicTests.java
  (BasicTests.MyChangelistCallback.doChangelist): Canonicalize the path
   because the test case that uses this callback does the same.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1539230 13f79535-47bb-0310-9956-ffa450edef68