tag release.r58.1: adds OS X Lion support
tag release.r58.1: adds OS X Lion support

R=adg, dsymonds
CC=golang-dev
http://codereview.appspot.com/4702043
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go