fix linter error with new golancilint version

Author: d-rk

internal/consumergroupoffsets/consumer-group-offset-operation.go

@@ -29,7 +29,7 @@ type ConsumerGroupOffsetOperation struct {
 
 func (operation *ConsumerGroupOffsetOperation) ResetConsumerGroupOffset(flags ResetConsumerGroupOffsetFlags, groupName string) error {
 
-	if (flags.Topic == nil || len(flags.Topic) == 0) && (!flags.AllTopics) {
+	if (len(flags.Topic) == 0) && (!flags.AllTopics) {
 		return errors.New("no topic specified")
 	}
 

internal/producer/producer-operation.go

@@ -213,7 +213,7 @@ func (operation *Operation) Produce(topic string, flags Flags) error {
 			}
 
 			if inputMessage, err = inputParser.ParseLine(line); err != nil {
-				return failWithMessageCount(messageCount, err.Error())
+				return failWithMessageCount(messageCount, err.Error()) //nolint:govet
 			}
 
 			messageCount++