Pass Retry object to urllib3 instead of False (elastic#827)

By passing a `Retry` object to `urlopen` instead of just `False`, it prevents `urllib3` from having to create a Retry object with `from_int`. `from_int` emits an undesirable log message when called with `retries=False`, and this can be avoided by the method described above.

Author: Wynndow

elasticsearch/connection/http_urllib3.py

@@ -2,6 +2,7 @@
 import ssl
 import urllib3
 from urllib3.exceptions import ReadTimeoutError, SSLError as UrllibSSLError
+from urllib3.util.retry import Retry
 import warnings
 import gzip
 
@@ -168,7 +169,7 @@ def perform_request(self, method, url, params=None, body=None, timeout=None, ign
  # again
  body = gzip.zlib.compress(body)
 
- response = self.pool.urlopen(method, url, body, retries=False, headers=request_headers, **kw)
+ response = self.pool.urlopen(method, url, body, retries=Retry(False), headers=request_headers, **kw)
  duration = time.time() - start
  raw_data = response.data.decode('utf-8')
  except Exception as e: