Fixed illegal argument exception in indices.py as request_timeout is expected instead of timeout.

[jubins]

Whenever the user passes timeout parameter as mentioned in docstring an illegal argument exception is thrown. For the following methods in elasticsearch.client.indices.py, renamed this to expected request_timeout param in the decorator and docstring.

1. create
2. open
3. close
4. delete
5. put_mapping
6. put_alias
7. update_aliases
8. delete_alias
9. put_template
10. delete_template
11. shrink
12. rollover

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[fxdgear]

jenkins test this please

[jubins]

@fxdgear Saw some connection related failures for the test ES 6.6.2 and python 2.7. Tested in my local and seems to be working

Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15) 
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import elasticsearch as es
>>> es.__version__
(6, 3, 0)
>>> conn = es.Elasticsearch()
>>> conn.indices.exists('test_index')
False
>>> conn.indices.create('test_index', params={'request_timeout': 0.5})
{u'index': u'test_index', u'acknowledged': True, u'shards_acknowledged': True}
>>> conn.indices.exists('test_index')
True
>>> conn.indices.delete('test_index', params={'request_timeout': 1})
{u'acknowledged': True}
>>> conn.indices.exists('test_index')
False

>>> # Below test should error out, due to timeout parameter
>>> conn.indices.create('test_index', params={'timeout': 0.5})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/jubin/.local/lib/python2.7/site-packages/elasticsearch/client/utils.py", line 76, in _wrapped
    return func(*args, params=params, **kwargs)
  File "/home/jubin/.local/lib/python2.7/site-packages/elasticsearch/client/indices.py", line 91, in create
    params=params, body=body)
  File "/home/jubin/.local/lib/python2.7/site-packages/elasticsearch/transport.py", line 318, in perform_request
    status, headers_response, data = connection.perform_request(method, url, params, body, headers=headers, ignore=ignore, timeout=timeout)
  File "/home/jubin/.local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 185, in perform_request
    self._raise_error(response.status, raw_data)
  File "/home/jubin/.local/lib/python2.7/site-packages/elasticsearch/connection/base.py", line 125, in _raise_error
    raise HTTP_EXCEPTIONS.get(status_code, TransportError)(status_code, error_message, additional_info)
elasticsearch.exceptions.RequestError: TransportError(400, u'illegal_argument_exception', u'failed to parse setting [timeout] with value [0.5] as a time value: unit is missing or unrecognized')
>>> 

[fxdgear]

jenkins retest this please

[jubins]

@fxdgear Hi, if all looks ok can this be merged?