Fix duplicate container query param on exec pod command

pkg/kubectl/cmd/exec/exec.go

@@ -311,8 +311,7 @@ func (p *ExecOptions) Run() error {
 			Resource("pods").
 			Name(pod.Name).
 			Namespace(pod.Namespace).
-			SubResource("exec").
-			Param("container", containerName)
+			SubResource("exec")
 		req.VersionedParams(&corev1.PodExecOptions{
 			Container: containerName,
 			Command:   p.Command,

pkg/kubectl/cmd/exec/exec_test.go

@@ -244,6 +244,10 @@ func TestExec(t *testing.T) {
 				t.Errorf("%s: Did not get expected path for exec request", test.name)
 				return
 			}
+			if strings.Count(ex.url.RawQuery, "container=bar") != 1 {
+				t.Errorf("%s: Did not get expected container query param for exec request", test.name)
+				return
+			}
 			if ex.method != "POST" {
 				t.Errorf("%s: Did not get method for exec request: %s", test.name, ex.method)
 			}