Fix bad sed in master.sh
Fix bad sed in master.sh

Sed would only work if scenario was 2_role
CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,michaeltchapman/vagrant-consul,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,phchoic/puppet_openstack_builder,phchoic/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,CiscoSystems/puppet_openstack_builder--to-be-deleted,phchoic/puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder,michaeltchapman/vagrant-consul,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder