add default value for scope (#767)

Author: IevaVasiljeva

docs/resources/role.md

@@ -70,7 +70,7 @@ Required:
 
 Optional:
 
-- `scope` (String) Scope to restrict the action to a set of resources (for example: `users:*` or `roles:customrole1`)
+- `scope` (String) Scope to restrict the action to a set of resources (for example: `users:*` or `roles:customrole1`) Defaults to ``.
 
 ## Import
 

grafana/resource_role.go

@@ -86,6 +86,7 @@ func ResourceRole() *schema.Resource {
 						"scope": {
 							Type:        schema.TypeString,
 							Optional:    true,
+							Default:     "",
 							Description: "Scope to restrict the action to a set of resources (for example: `users:*` or `roles:customrole1`)",
 						},
 					},