Bug#988788: cfengine3-augments: can't override mpf_update_policy_master_location

[Valentin Kleibel]

Package: cfengine3
Version: 3.12.1-2
Source: cfengine3
Dear Maintainers,

I noticed a bug in the mpf framework that prevents overriding the master 
policy location via augments.
It ist well documented here: https://tracker.mender.io/browse/CFE-2953
I have also attached the patch.

Best regards,
Valentin
--- a/controls/update_def.cf
+++ b/controls/update_def.cf
@@ -145,7 +145,7 @@
       "mpf_update_policy_master_location" -> { "ENT-3692" }
         comment => "Directory where clients should get policy from.",
         string => "$(def.mpf_update_policy_master_location)",
-        if => isvariable( $(def.mpf_update_policy_master_location) );
+        if => isvariable( "def.mpf_update_policy_master_location" );
 
     # enable_cfengine_enterprise_hub_ha is defined below
     # Disabled by default