Following up on r1100163, add a write lock check to the revert handling.
Following up on r1100163, add a write lock check to the revert handling.

* subversion/libsvn_wc/adm_ops.c
  (new_revert_internal): Expect a write lock on the directory containing
    this node, which might be the directory itself for the wcroot.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion