StackExchange/StackExchange.Redis — pull request #54 by deepakverma (2014-06-10 23:49:30+00:00)
Title: Add innerexception message in case of a fault 

Initial stab at improving the exception message in case of a failure.
for auth failure with this change it would throw the following exception:
Unhandled Exception: StackExchange.Redis.RedisConnectionException: It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. AuthenticationFailure on PING