ssh_authkey_fingerprints: fix bug that prevented disabling the module

Module intended to allow disabling by configuration, but that was broken.
Now this allows:
  no_ssh_fingerprints = True

ChangeLog

@@ -23,6 +23,8 @@
    unless config explicitly provided (LP: #1329583) [Garrett Holmstrom])
  - fix rendering resolv.conf if no 'options' are provided (LP: #1328953)
  - docs: fix disk-setup to reference 'table_type' [Rail Aliiev] (LP: #1313114)
+ - ssh_authkey_fingerprints: fix bug that prevented disabling the module.
+   (LP: #1340903) [Patrick Lucas]
 0.7.5:
  - open 0.7.5
  - Add a debug log message around import failures

cloudinit/config/cc_ssh_authkey_fingerprints.py

@@ -92,9 +92,10 @@ def _pprint_key_entries(user, key_fn, key_entries, hash_meth='md5',
 
 
 def handle(name, cfg, cloud, log, _args):
-    if 'no_ssh_fingerprints' in cfg:
+    if util.is_true(cfg.get('no_ssh_fingerprints', False)):
         log.debug(("Skipping module named %s, "
                    "logging of ssh fingerprints disabled"), name)
+        return
 
     hash_meth = util.get_cfg_option_str(cfg, "authkey_hash", "md5")
     (users, _groups) = ds.normalize_users_groups(cfg, cloud.distro)