Add a newline to user data injection.
Add a newline to user data injection.

If no newline is present at the end of the user-data section of the
template, the addition of the touch command will cause the last
line to break.

Change-Id: I15ba402f83f6fba03f7d0455a63a5dc03480973d
Signed-off-by: Ian Main <87edab3227c32093d388ed00258c1a5e63cfd715@redhat.com>

redhat-openstack/heat,rdo-management/heat,rh-s/heat,cwolferh/heat-scratch,citrix-openstack-build/heat,cwolferh/heat-scratch,gonzolino/heat,dims/heat,openstack/heat,rickerc/heat_audit,rdo-management/heat,dims/heat,redhat-openstack/heat,pratikmallya/heat,rickerc/heat_audit,pshchelo/heat,ntt-sic/heat,srznew/heat,NeCTAR-RC/heat,JioCloud/heat,noironetworks/heat,takeshineshiro/heat,pratikmallya/heat,dragorosson/heat,gonzolino/heat,cryptickp/heat,jasondunsmore/heat,dragorosson/heat,JioCloud/heat,pshchelo/heat,maestro-hybrid-cloud/heat,noironetworks/heat,miguelgrinberg/heat,cryptickp/heat,Triv90/Heat,Triv90/Heat,takeshineshiro/heat,ntt-sic/heat,miguelgrinberg/heat,steveb/heat,varunarya10/heat,maestro-hybrid-cloud/heat,rh-s/heat,citrix-openstack-build/heat,Triv90/Heat,steveb/heat,openstack/heat,varunarya10/heat,jasondunsmore/heat,srznew/heat,NeCTAR-RC/heat