Merge pull request #275 from cgwalters/drop-unnecessary-bootupd-root

manifests/bootupd: Drop unnecessary /

tier-0/bootupd.yaml

@@ -28,4 +28,4 @@ postprocess:
     # Until we have https://github.com/coreos/rpm-ostree/pull/2275
     mkdir -p /run
     # Transforms /usr/lib/ostree-boot into a bootupd-compatible update payload
-    /usr/bin/bootupctl backend generate-update-metadata /
+    /usr/bin/bootupctl backend generate-update-metadata