mod_admin_blocklist: Fix traceback due to misplaced parenthesis
get_jids_with_role() throws an exception when 'host' is nil since
Prosody trunk rev 7ca5645f46cd
---
labels:
- 'Stage-Obsolete'
summary: 'XEP-0313: Message Archive Management'
superseded_by: mod_mam
...
Since Prosody 0.10, this module is [included in Prosody](https://prosody.im/doc/modules/mod_mam), you will be redirected there shortly.