Fixed apache:license task definition to work with Rake 0.8.2.
Fixed apache:license task definition to work with Rake 0.8.2.

git-svn-id: f481de8ecb0d1e2ade8c586a5c716a32a1f3e8c1@695579 13f79535-47bb-0310-9956-ffa450edef68

ittayd/buildr,assaf/buildr,liamchristopher/buildr,stewi2/buildr,apache/buildr,stewi2/buildr,jpcaruana/buildr,liamchristopher/buildr,jpcaruana/buildr,atoulme/buildr,atoulme/buildr,atoulme/buildr,mariusk/buildr-kawa,apache/buildr,stewi2/buildr,assaf/buildr,liamchristopher/buildr,apache/buildr,ittayd/buildr,ittayd/buildr,jpcaruana/buildr,mariusk/buildr-kawa,apache/buildr,liamchristopher/buildr,jpcaruana/buildr,assaf/buildr,stewi2/buildr,mariusk/buildr-kawa