Re #77: Debugging test failure on CircleCI.

log4j2-appender/src/test/resources/basic-appender-test-configuration.xml

@@ -19,6 +19,8 @@
                 <Pattern>%X{ctx:tid} [%t] %d{DEFAULT} %5p %c{1} - %m%n%exception{full}</Pattern>
             </PatternLayout>
 
+            <logShipperWakeupIntervalMillis>1</logShipperWakeupIntervalMillis>
+
             <Header name="server" value="127.0.0.1"/>
             <Label name="server" value="127.0.0.1"/>
         </Loki>