bin/instrument_server in instrumental_tools-0.1.0 vs bin/instrument_server in instrumental_tools-0.1.1

@@ -244,10 +244,11 @@
 end
 unless token
   puts "Usage: #{$0} <token> [collector]"
   exit 1
 end
-I = Instrumental::Agent.new(token, :collector => collector)
+options = collector.nil? ? {} : { :collector => collector }
+I = Instrumental::Agent.new(token, options)
 
 host = `hostname`.chomp
 
 puts "Collecting stats under the hostname: #{host}"