ansible-inventories/bitegra#35 Fix regex by always quoting it

templates/httpcheck.conf

@@ -104,7 +104,7 @@ redirect: no
     name: {{ item.name }}
     url: {{ item.url }}
 {% if item.regex is defined %}
-    regex: {{ item.regex|regex_escape() }}
+    regex: '{{ item.regex|regex_escape() }}'
 {% endif %}
 {% if item.redirect|default(false) %}
     redirect: yes