This commit was manufactured as part of Drupal's Great Git Migration to

create tag 'DRUPAL-6--1-0-RC1'.

Sprout from DRUPAL-6--1 2010-01-29 22:35:21 UTC Mike Ryan <mikeryan@4420.no-reply.drupal.org> 'Bug setting comment parents'
Cherrypick from DRUPAL-6--1 2010-01-17 19:47:21 UTC moshe weitzman <weitzman@cyrve.com> 'Fix undefined var in drush integration.':
    migrate.drush.inc