Fix printing classes and attrsv1.0.2

Well well well, here we are again.
Iterate over the `nClasses` list instead of every attr after printing
the classes.

With all due respect, you should consider writing a test suite to catch
silly errors like this.

1 files changed, 1 insertions, 1 deletions

diff --git a/formatter/formatter.go b/formatter/formatter.go
index b8ec85f..f5d7517 100644
--- a/formatter/formatter.go
+++ b/formatter/formatter.go
@@ -70,7 +70,7 @@ func printAttrs(attrs []parser.Attr) {
 		}
 	}
 
-	for _, a := range attrs {
+	for _, a := range nClasses {
 		fmt.Printf(" %s", a.Key)
 		if a.Value != "" {
 			fmt.Print("=\"")