whitespace allowed in template field name

[podollb]

If I PUT this template definition to http://localhost:9200/_template/my_new_template it works, but notice the field name "some_field " actually has a trailing whitespace in the String (I think that should be trimmed).

{
  "template": "some_index_*",
  "mappings": {
    "some_mapping": {
      "properties": {
        "some_field ": {
          "type": "double"
        }
      }
    }
  }
}

[clintongormley]

Agreed - closing as duplicate of #9059