Disable jetty log file by default

config/web/settings.ini

@@ -97,8 +97,8 @@ war.wrapper.context.root=/
 #### Job Planner REST URL
 jp.url=http://localhost:8080/job-planner/planned_jobs
 
-# path to the jetty log file
-jetty.log.file=./logs/jetty-yyyy_mm_dd.request.log
+# path to the jetty log file, disabled by default as retention is broken in the version of jetty we are using
+#jetty.log.file=./logs/jetty-yyyy_mm_dd.request.log
 
 # retention period (days) for jetty logs
 jetty.log.retain.days=5