Directly fetch a couple of entries, and get rid of an access baton.
Directly fetch a couple of entries, and get rid of an access baton.

* subversion/libsvn_client/externals.c
  (switch_dir_external): Don't open an access baton just to fetch an entry.
  (switch_file_external): Directly get an entry.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@879415 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion