Fix acme state to correctly return on test
Fix acme state to correctly return on test

Previously, the acme.cert state would return that a change was pending
during a test run even in the case that the certificate would not have
been touched.

Changed the return value in this case so that it is not thought to
require a change.

This is reported in #40208 [0] and is also referenced in #42763 [1].
The issue #40208 looks to go on to recommend further changes beyond the
scope of this 'quick fix'.

[0] https://github.com/saltstack/salt/issues/40208#issuecomment-289637588
[1] https://github.com/saltstack/salt/issues/42763#issuecomment-345728031

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt