Fix gofmt to validate Experiment name (#1545)

Author: andreyvelich

pkg/webhook/v1beta1/experiment/validator/validator.go

@@ -69,9 +69,9 @@ func (g *DefaultValidator) InjectClient(c client.Client) {
 func (g *DefaultValidator) ValidateExperiment(instance, oldInst *experimentsv1beta1.Experiment) error {
 	namingConvention, _ := regexp.Compile("^[a-z]([-a-z0-9]*[a-z0-9])?")
 	if !namingConvention.MatchString(instance.Name) {
-		msg :="Name must consist of lower case alphanumeric characters or '-'," +
+		msg := "name must consist of lower case alphanumeric characters or '-'," +
 			" start with an alphabetic character, and end with an alphanumeric character" +
-			" (e.g. 'my-name', or 'abc-123', regex used for validation is '[a-z]([-a-z0-9]*[a-z0-9])?)'"
+			" (e.g. 'my-name', or 'abc-123', regex used for validation is '^[a-z]([-a-z0-9]*[a-z0-9])?)'"
 
 		return fmt.Errorf(msg)
 	}