aggregate coverage metrics of unit tests across packages (#115)

aggregate coverage metrics of unit tests across packages
diff --git a/openstack/identity/v2/extensions/admin/roles/testing/doc.go b/openstack/identity/v2/extensions/admin/roles/testing/doc.go
index 7603f83..70ba643 100644
--- a/openstack/identity/v2/extensions/admin/roles/testing/doc.go
+++ b/openstack/identity/v2/extensions/admin/roles/testing/doc.go
@@ -1 +1,2 @@
+// identity_extensions_admin_roles_v2
 package testing
diff --git a/openstack/identity/v2/extensions/testing/doc.go b/openstack/identity/v2/extensions/testing/doc.go
index 7603f83..6d4b67d 100644
--- a/openstack/identity/v2/extensions/testing/doc.go
+++ b/openstack/identity/v2/extensions/testing/doc.go
@@ -1 +1,2 @@
+// identity_extensions_v2
 package testing
diff --git a/openstack/identity/v2/tenants/testing/doc.go b/openstack/identity/v2/tenants/testing/doc.go
index 7603f83..57aaa1f 100644
--- a/openstack/identity/v2/tenants/testing/doc.go
+++ b/openstack/identity/v2/tenants/testing/doc.go
@@ -1 +1,2 @@
+// identity_tenants_v2
 package testing
diff --git a/openstack/identity/v2/tokens/testing/doc.go b/openstack/identity/v2/tokens/testing/doc.go
index 7603f83..f9767eb 100644
--- a/openstack/identity/v2/tokens/testing/doc.go
+++ b/openstack/identity/v2/tokens/testing/doc.go
@@ -1 +1,2 @@
+// identity_tokens_v2
 package testing
diff --git a/openstack/identity/v2/users/testing/doc.go b/openstack/identity/v2/users/testing/doc.go
index 7603f83..a007def 100644
--- a/openstack/identity/v2/users/testing/doc.go
+++ b/openstack/identity/v2/users/testing/doc.go
@@ -1 +1,2 @@
+// identity_users_v2
 package testing