Changing log level inside execute_with_retries method
Changing log level inside execute_with_retries method

In some cases permanent error during client call is not fatal.
So, lets change logging level to "debug" instead of "error"
to avoid confusion.

Change-Id: Ib42f07295470d84d5e9944277113dd7bcebd0167
Closes-bug: #1461288
Related-bug: #1460883

tellesnobrega/sahara,ekasitk/sahara,crobby/sahara,openstack/sahara,openstack/sahara,zhangjunli177/sahara,egafford/sahara,zhangjunli177/sahara,ekasitk/sahara,tellesnobrega/sahara,egafford/sahara,crobby/sahara,zhangjunli177/sahara,ekasitk/sahara,crobby/sahara