anchor.diff:  
   The following example renames the isolation segment with the given GUID to `my_isolation_segment`:
   <pre class="terminal">
  -$ cf curl "/v3/isolation_segments/323f211e-fea3-4161-9bd1-615392327913" \
  +$ cf curl "/v3/isolation\_segments/323f211e-fea3-4161-9bd1-615392327913" \
     -X PATCH \
     -d '{
  -    "name": "my_isolation_segment"
  +    "name": "my\_isolation\_segment"
     }'
   </pre>
   
  
positive.code: HTTP/1.1 200 OK<br>
  {
     "guid": "323f211e-fea3-4161-9bd1-615392327913",
     "name": "my_segment",
     "created_at": "2016-10-19T20:25:04Z",
     "updated_at": "2016-11-08T16:41:26Z",
     "links": {
        "self": {
           "href": "https://api.example.org/v3/isolation_segments/323f211e-fea3-4161-9bd1-615392327913"
        },
        "spaces": {
           "href": "https://api.example.org/v3/isolation_segments/323f211e-fea3-4161-9bd1-615392327913/relationships/spaces"
        },
        "organizations": {
           "href": "https://api.example.org/v3/isolation_segments/323f211e-fea3-4161-9bd1-615392327913/relationships/organizations"
        }
     }
  }
  
negative.code: {
    "data": [
      {
        "name": "my\_org",
        "guid": "45a66ed9-cb76-46c3-92dd-b29187b50bfb",
        "link": "/v2/organizations/45a66ed9-cb76-46c3-92dd-b29187b50bfb"
      },
      {
        "name": "my\_other\_org",
        "guid": "d0540a63-3bec-42ff-abd9-8a30328ba296",
        "link": "/v2/organizations/d0540a63-3bec-42ff-abd9-8a30328ba296"
      }
  