Check at most 16 characters of the key. Fixes #7936

Signed-off-by: Hector Acosta <hector.acosta@gmail.com>

library/packaging/apt_key

@@ -254,7 +254,7 @@ def main():
                 keys2 = all_keys(module, keyring, short_format)
                 if len(keys) != len(keys2):
                     changed=True
-                if key_id and not key_id in keys2:
+                if key_id and not key_id[-16:] in keys2:
                     module.fail_json(msg="key does not seem to have been added", id=key_id)
                 module.exit_json(changed=changed)
     elif state == 'absent':