bin/sb in starting_blocks-0.3.1 vs bin/sb in starting_blocks-0.4.0

@@ -25,9 +25,10 @@
   StartingBlocks::Runner.new(options).run_files files
 end
 
 if ARGV.include? '--watch'
   StartingBlocks::Watcher.start_watching Dir, options
+  sleep
 elsif ARGV.include? '--off'
   StartingBlocks::Extensions::BlinkyLighting.turn_off!
 else
   results = run_all_specs options