code: function servicesRunning() {
  			var composeArgs = ['ps'];
  
  			// If we're tailing just the main service's logs, then we only check that service
  			if (service === '<%= dockerCompose.options.mainService %>') {
  				composeArgs.push(grunt.config.get('dockerCompose.options.mainService'));
  			}
  
  			// get the stdout of docker-compose ps, store as Array, and drop the header lines.
  			var serviceList = spawn('docker-compose', composeArgs).stdout.toString().split('\n').slice(2),
  				upCount = 0;
  
  			// if we are left with 1 line or less, then nothing is running.
  			if (serviceList.length <= 1) {
  				return false;
  			}
  
  			function isUp(service) {
  				if (service.indexOf('Up') > 0) {
  					upCount++;
  				}
  			}
  
  			serviceList.forEach(isUp);
  
  			return upCount > 0;
  		}
docs: do we have any services running?