Fix python2.6 itertools.count() usage
Fix python2.6 itertools.count() usage

In python 2.6, itertools.count() can't take
keyword arguments.

Change-Id: I979e532101c9f0b76b149f80ad9aa390edd3f646
Reviewed-on: http://gerrit.cloudera.org:8080/11408
Tested-by: Impala Public Jenkins <039b6b20426ff68ebe492b3021890d8c8fd010c9@cloudera.com>
Reviewed-by: Tim Armstrong <2f8e34250f03a653da3dc27f7ec203eafdde80fc@cloudera.com>

cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala