go: update to 1.3.1

srcpkgs/go/template

@@ -1,7 +1,7 @@
 # Template file for 'go'
 pkgname=go
-version=1.3
-revision=2
+version=1.3.1
+revision=1
 wrksrc=go
 hostmakedepends="mercurial ca-certificates"
 depends="perl"
@@ -10,7 +10,7 @@ maintainer="Dominik Honnef <dominik@honnef.co>"
 homepage="http://golang.org/"
 license="BSD"
 distfiles="http://golang.org/dl/go${version}.src.tar.gz"
-checksum=eb983e6c5b2b9838f482c5442b1ac1856f610f2b21f3c123b3fedb48ffc35382
+checksum=fdfa148cc12f1e4ea45a5565261bf43d8a2e7d1fad4a16aed592d606223b93a8
 
 nostrip=yes
 noverifyrdeps=yes
@@ -57,7 +57,7 @@ do_build() {
 	GOOS=linux
 	GOARCH=$targetarch
 
-	hg clone -u release-branch.go${version} \
+	hg clone -u release-branch.go$(echo "$version" | cut -d "." -f "1-2") \
 		--config web.cacerts=/etc/ssl/certs/ca-certificates.crt \
 		https://code.google.com/p/go.tools/ \
 		$GOPATH/src/code.google.com/p/go.tools