style(linting): fix linting issues

Author: adrianbrad

blocking.go

@@ -154,7 +154,6 @@ func (bq *Blocking[T]) Clear() []T {
 }
 
 // Iterator returns an iterator over the elements in this queue.
-// Iterator returns an iterator over the elements in the queue.
 // It removes the elements from the queue.
 func (bq *Blocking[T]) Iterator() <-chan T {
 	bq.lock.RLock()

blocking_test.go

@@ -761,12 +761,12 @@ func TestBlocking(t *testing.T) {
 	})
 }
 
-// failMarshal is a helper to fail the json marshalling of the queues
+// failMarshal is a helper to fail the json marshalling of the queues.
 type failMarshal struct{}
 
 var errFailMarshal = errors.New("intentional marshal error")
 
-func (f failMarshal) MarshalJSON() ([]byte, error) {
+func (failMarshal) MarshalJSON() ([]byte, error) {
 	return nil, errFailMarshal
 }