Code cleanup.
Code cleanup.

Make 'do_single_file_merge' to accept the 'notify_b' that is already allocated
by the callers instead of allocating one on its own.

* subversion/libsvn_client/merge.c
  (do_single_file_merge): Accept 'notify_b' from callers.
  (svn_client_merge3, svn_client_merge_peg3): Adjust for the above change.

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