textutil,dns: enable and fix dupword lint issues

Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>

.golangci.yml

@@ -35,6 +35,7 @@ linters:
   - bodyclose
   # - dogsled
   # - dupl
+  - dupword
   # - errcheck
   # - errorlint
   # - exhaustive

pkg/hostagent/dns/dns.go

@@ -68,7 +68,7 @@ func (s *Server) Shutdown() {
 }
 
 func newStaticClientConfig(ips []string) (*dns.ClientConfig, error) {
-	logrus.Tracef("newStaticClientConfig creating config for the the following IPs: %v", ips)
+	logrus.Tracef("newStaticClientConfig creating config for the following IPs: %v", ips)
 	s := ``
 	for _, ip := range ips {
 		s += fmt.Sprintf("nameserver %s\n", ip)

pkg/textutil/textutil.go

@@ -77,7 +77,7 @@ var TemplateFuncMap = template.FuncMap{
 	},
 	"indent": func(a ...interface{}) (string, error) {
 		if len(a) == 0 {
-			return "", errors.New("function takes at at least one string argument")
+			return "", errors.New("function takes at least one string argument")
 		}
 		if len(a) > 2 {
 			return "", errors.New("function takes at most 2 arguments")
@@ -97,7 +97,7 @@ var TemplateFuncMap = template.FuncMap{
 	},
 	"missing": func(a ...interface{}) (string, error) {
 		if len(a) == 0 {
-			return "", errors.New("function takes at at least one string argument")
+			return "", errors.New("function takes at least one string argument")
 		}
 		if len(a) > 2 {
 			return "", errors.New("function takes at most 2 arguments")