As a result of checkin svn r1024541, which promoted some client-side Sasl code to the common library for use in broker, the broker now prompts for a password when when it is run with --auth=no !
The attached patch removes this behavior by propagating knowledge of "--auth=no" down to SaslFactory. If authorization has been turned off, the Saslfactory will create a null sasl object, just like it does if the code is compiled with no Sasl support.
TODO – also must fix the pathway where auth==yes.
NOTE: this is apparently an irritant rather than a disaster, since it did not affect make check after the original checkin ( r102451 ).