Fixes typo on trusty repo

Change-Id: Ieade58fe7208cf179b72630222a49da8a3a74ee8
diff --git a/metadata/service/cluster/single.yml b/metadata/service/cluster/single.yml
index 5c91bd1..a307dcc 100644
--- a/metadata/service/cluster/single.yml
+++ b/metadata/service/cluster/single.yml
@@ -41,5 +41,5 @@
         MA==
         =dtMN
         -----END PGP PUBLIC KEY BLOCK-----
-      saltstack_repo_trusty: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/ trusty main"
-      saltstack_repo_xenial: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/ xenial main"
\ No newline at end of file
+      saltstack_repo_trusty: "http://repo.saltstack.com/apt/ubuntu/14.04/amd64/2016.3/ trusty main"
+      saltstack_repo_xenial: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/ xenial main"