Hide configuration value from Puppet logs if the secret parameter
is set to true.
Fixes: bug #1173322
Change-Id: I380a86b834c2f6cb6f347cade6137ee2e757f091
This patch allows the usage of Puppet boolean values and still
configure values with OpenStack boolean style: True/False.
Change-Id: I972ac41757f253500f43dc285784f5f8af6ce2ab