fix velocity template: '$' has special meaning
@@ -201,7 +201,7 @@ logger.debug("one={}, two={}, three={}", 1, 2, 3);
&lt;Socket name="Graylog" protocol="udp" host="graylog.domain.com" port="12201"&gt;
&lt;GelfLayout host="someserver" compressionType="GZIP" compressionThreshold="1024"&gt;
&lt;KeyValuePair key="additionalField1" value="constant value"/&gt;
- &lt;KeyValuePair key="additionalField2" value="$${ctx:key}"/&gt;
+ &lt;KeyValuePair key="additionalField2" value="${dollar}${dollar}{ctx:key}"/&gt;
&lt;/GelfLayout&gt;
&lt;/Socket&gt;
&lt;/Appenders&gt;
