Print out a more human readable error when selecting wrong security p…

…rotocol

This change modifies the error message returned from nuage when selecting
the wrong security protocol. The old error message was: 'wrong status line:
"\x15\x03\x03\x00\x02\x02"' which was not informative to the end user.

app/models/manageiq/providers/nuage/manager_mixin.rb

@@ -35,6 +35,8 @@ def translate_exception(err)
         MiqException::MiqHostError.new("Socket error: #{err.message}")
       when MiqException::MiqInvalidCredentialsError, MiqException::MiqHostError
         err
+      when Net::HTTPBadResponse
+        Net::HTTPBadResponse.new("Login failed due to a bad security protocol, hostname or port.")
       else
         MiqException::MiqEVMLoginError.new("Unexpected response returned from system: #{err.message}")
       end