change comments to preserve for yui

Makefile

@@ -36,7 +36,7 @@ bootstrap:
 	jshint js/tests/unit/*.js --config js/.jshintrc
 	cat js/bootstrap-transition.js js/bootstrap-alert.js js/bootstrap-button.js js/bootstrap-carousel.js js/bootstrap-collapse.js js/bootstrap-dropdown.js js/bootstrap-modal.js js/bootstrap-tooltip.js js/bootstrap-popover.js js/bootstrap-scrollspy.js js/bootstrap-tab.js js/bootstrap-typeahead.js > bootstrap/js/bootstrap.js
 	uglifyjs -nc bootstrap/js/bootstrap.js > bootstrap/js/bootstrap.min.tmp.js
-	echo "/**\n* Bootstrap.js by @fat & @mdo\n* Copyright 2012 Twitter, Inc.\n* http://www.apache.org/licenses/LICENSE-2.0.txt\n*/" > bootstrap/js/copyright.js
+	echo "/*!\n* Bootstrap.js by @fat & @mdo\n* Copyright 2012 Twitter, Inc.\n* http://www.apache.org/licenses/LICENSE-2.0.txt\n*/" > bootstrap/js/copyright.js
 	cat bootstrap/js/copyright.js bootstrap/js/bootstrap.min.tmp.js > bootstrap/js/bootstrap.min.js
 	rm bootstrap/js/copyright.js bootstrap/js/bootstrap.min.tmp.js