[Bug 1022983] Consider updating Rawhide to Go 1.2 release candidate

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1022983

--- Comment #19 from Vincent Batts  ---
update: i have separated out the godoc from the golang into subpackage
golang-godoc. And 'golang' will require /usr/bin/godoc. Seamless for current
fedora/epel releases.

We have the review in progess for the go.tools
https://bugzilla.redhat.com/show_bug.cgi?id=1029068 which will provide it's own
-godoc. 
This way an upgrade of golang to go1.2, will no long produce a golang-godoc,
and could install either existing golang-godoc or that from go.tools. We could
even have an explicit require on the go.tools subpackage.