修改角色

可在创建角色后修改角色属性。

请求示例：

PUT /api/role/v1/roles/role_workflow HTTP/1.1
Authorization: Basic abcefgMWE=
Host: zfssa.example.com:215
Accept: application/json
Content-Type: application/json
Content-Length: 54

{"description":"Role allowing user to run workflows!"}

结果示例：

HTTP/1.1 202 Accepted
X-Zfssa-Appliance-Api: 1.0
Content-Type: application/json
Content-Length: 158

 {
    "role": {
        "authorizations": [],
        "description": "Role allowing user to run workflows!",
        "href": "/api/role/v1/roles/role_workflow",
        "name": "role_workflow"
    }
}