Fix a merge-related memory leak.
Fix a merge-related memory leak.

* subversion/libsvn_client/merge.c
  (adjust_deleted_subtree_ranges): When exiting early, destroy the subpool
  we allocated.

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