Log daily cleanup

app/src/main/java/eu/faircode/email/JobDaily.java

@@ -53,6 +53,7 @@ public class JobDaily extends JobService {
     @Override
     public boolean onStartJob(JobParameters args) {
         Log.i(Helper.TAG, "Starting daily job");
+        EntityLog.log(this, "Daily cleanup");
 
         final DB db = DB.getInstance(this);