for 'NOAUTH Authentication required.' recordconnection failure

When connectionmultiplexer is used with a log textwriter, with this change it would show something like this

Requesting tie-break from test.redis.cache.windows.net:6380 > __Bookslee
ve_TieBreak...
Allowing endpoints 24.20:31:23.6470000 to respond...
test.redis.cache.windows.net:6380 faulted: AuthenticationFailure on PING