packer: update to 1.2.0.

srcpkgs/packer/template

@@ -1,7 +1,7 @@
 # Template file for 'packer'
 pkgname=packer
-version=1.1.3
-revision=2
+version=1.2.0
+revision=1
 replaces="packer-bin>=0"
 short_desc="Create identical multiplatform machine images from a single source"
 maintainer="Andrea Brancaleoni <abc@pompel.me>"
@@ -11,7 +11,7 @@ license="MPL-2"
 homepage="http://www.packer.io"
 go_import_path="github.com/mitchellh/packer"
 distfiles="https://${go_import_path}/archive/v${version}.tar.gz"
-checksum=3f839c1a973ef8abe72a6425855f8dba2b6c2fffd50155286e4248f8101df400
+checksum=bbb8bcf60de329d61769fbf4478174d72535423d0803335f4f42c8b38f3e6be7
 
 post_build() {
 	for F in $(find -type f -name main.go); do