Handle comments in standalone lines
diff --git a/lib/scanner.dart b/lib/scanner.dart
index c17827d..23ddb1b 100644
--- a/lib/scanner.dart
+++ b/lib/scanner.dart
@@ -7,11 +7,7 @@
 List<_Token> _scan(String source, bool lenient) //=> _trim(new _Scanner(source).scan());

 {

 	var tokens = new _Scanner(source).scan();

-	print('Before');

-	print(tokens);

-	tokens = _trim(tokens);

-	print('After');

-	print(tokens);	

+	tokens = _trim(tokens);	

 	return tokens;

 }