Logging that a worker has started if it is verbose, like the rest of …

…Resque.

lib/resque/tasks.rb

@@ -19,7 +19,7 @@
       abort "set QUEUE env var, e.g. $ QUEUE=critical,high rake resque:work"
     end
 
-    puts "*** Starting worker #{worker}"
+    worker.log "Starting worker #{worker}"
 
     worker.work(ENV['INTERVAL'] || 5) # interval, will block
   end