* tools/dist/release.py   (roll_tarballs): Early error if the deploy directory already exists.
* tools/dist/release.py
  (roll_tarballs): Early error if the deploy directory already exists.

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