Merge pull request #4420 from unclejack/bump_to_go_1.2.1

Bump Go to 1.2.1 in the Dockerfile

Dockerfile

@@ -62,7 +62,7 @@ RUN	cd /usr/local/lvm2 && ./configure --enable-static_link && make device-mapper
 # see https://git.fedorahosted.org/cgit/lvm2.git/tree/INSTALL
 
 # Install Go
-RUN	curl -s https://go.googlecode.com/files/go1.2.src.tar.gz | tar -v -C /usr/local -xz
+RUN	curl -s https://go.googlecode.com/files/go1.2.1.src.tar.gz | tar -v -C /usr/local -xz
 ENV	PATH	/usr/local/go/bin:$PATH
 ENV	GOPATH	/go:/go/src/github.com/dotcloud/docker/vendor
 RUN	cd /usr/local/go/src && ./make.bash --no-clean 2>&1