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
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labels:
summary: Send restricted XML for conformance testing
...
Introduction
============
This module sends processing instructions, comments, DTDs and a non
predefined entity (defined by the DTD) to the requesting entity.
Usage
=====
Send "PI", "comment", "DTD" or "entity" to
<xmpp:example.com/conformance>, while directly connected to the Prosody
instance.