Merge pull request #449 from yzqzss/patch-2

make `requests.session` to use `--retries` value

dumpgenerator.py

@@ -1776,7 +1776,7 @@ def getParameters(params=[]):
         from requests.packages.urllib3.util.retry import Retry
         from requests.adapters import HTTPAdapter
         # Courtesy datashaman https://stackoverflow.com/a/35504626
-        __retries__ = Retry(total=5,
+        __retries__ = Retry(total=int(args.retries),
                         backoff_factor=2,
                         status_forcelist=[500, 502, 503, 504])
         session.mount('https://', HTTPAdapter(max_retries=__retries__))