cf_promises_validated is not created in /var/cfengine/masterfiles for version 3.5.x

CFengine community 3.5.X
os. debian

The cf_promiises_validated file is used for 2 things. To reduce the load on the policy_server by checking:
1. policy_server:/var/cfengine/masterfiles/cf_promises_validated against client:/var/cfengine/inputs/cf_promises_validated. If they differ copy the masterfiles/* to
/var/cfengine/inputs.
2. Reduce the load locally. The client also creates the file /var/cfengine/masterfiles/cf_promises_validated. The last is broken in 3.5.X. The file is never created due to changes in this section. The absent of these file will trigger cf-serverd policy_check every 10 seconds and cause an high load on the client.

I can touch it, but if the input files are updated. This fileis outdated and cf-serverd will again run 10 seconds.

I have created a pull request for it, but i closed it because i did not know if it is th eright approach:

• https://github.com/cfengine/core/pull/671

I just reopened the pull request.