Use build tags to prevent accidental run of acceptance tests
diff --git a/acceptance/openstack/compute_test.go b/acceptance/openstack/compute_test.go
index 3781d38..4c487c7 100644
--- a/acceptance/openstack/compute_test.go
+++ b/acceptance/openstack/compute_test.go
@@ -1,3 +1,5 @@
+// +build acceptance
+
 package openstack
 
 import (