fix(cli): Fixes incorrect variable reference

Because these were additions, git didn't pick up that the recent refactor of
env settings had changed some of the variables. This fixes those small changes

Signed-off-by: Taylor Thomas <taylor.thomas@microsoft.com>

pkg/cli/environment.go

@@ -95,12 +95,12 @@ func (s *EnvSettings) EnvVars() map[string]string {
 		"HELM_REGISTRY_CONFIG":   s.RegistryConfig,
 		"HELM_REPOSITORY_CACHE":  s.RepositoryCache,
 		"HELM_REPOSITORY_CONFIG": s.RepositoryConfig,
-		"HELM_NAMESPACE":         s.Namespace,
+		"HELM_NAMESPACE":         s.Namespace(),
 		"HELM_KUBECONTEXT":       s.KubeContext,
 	}
 
-	if s.KubeConfig != "" {
-		envvars["KUBECONFIG"] = s.KubeConfig
+	if s.kubeConfig != "" {
+		envvars["KUBECONFIG"] = s.kubeConfig
 	}
 
 	return envvars