Improve rabbitmq-queues {add,delete}_member error messages

when target queue was not found.

deps/rabbitmq_cli/lib/rabbitmq/cli/core/exit_codes.ex

@@ -43,6 +43,8 @@ defmodule RabbitMQ.CLI.Core.ExitCodes do
   def exit_code_for({:no_such_vhost, _}), do: exit_dataerr()
   def exit_code_for({:no_such_user, _}), do: exit_nouser()
   def exit_code_for(:not_found), do: exit_dataerr()
+  def exit_code_for({:not_found, _vhost, _name}), do: exit_dataerr()
+  def exit_code_for({:not_found, _object_type, _vhost, _name}), do: exit_dataerr()
   def exit_code_for({:badrpc_multi, :timeout, _}), do: exit_tempfail()
   def exit_code_for({:badrpc, :timeout}), do: exit_tempfail()
   def exit_code_for({:badrpc, {:timeout, _}}), do: exit_tempfail()

deps/rabbitmq_cli/lib/rabbitmq/cli/queues/commands/add_member_command.ex

@@ -49,6 +49,9 @@ defmodule RabbitMQ.CLI.Queues.Commands.AddMemberCommand do
       {:error, :classic_queue_not_supported} ->
         {:error, "Cannot add members to a classic queue"}
 
+      {:error, :not_found} ->
+        {:error, {:not_found, :queue, vhost, name}}
+
       other ->
         other
     end

deps/rabbitmq_cli/lib/rabbitmq/cli/queues/commands/delete_member_command.ex

@@ -26,6 +26,9 @@ defmodule RabbitMQ.CLI.Queues.Commands.DeleteMemberCommand do
       {:error, :classic_queue_not_supported} ->
         {:error, "Cannot add members to a classic queue"}
 
+      {:error, :not_found} ->
+        {:error, {:not_found, :queue, vhost, name}}
+
       other ->
         other
     end

deps/rabbitmq_cli/lib/rabbitmqctl.ex

@@ -468,6 +468,16 @@ defmodule RabbitMQCtl do
     {:error, ExitCodes.exit_code_for(result), "Virtual host '#{vhost}' does not exist"}
   end
 
+  defp format_error({:error, {:not_found, vhost, name} = result}, _opts, _) do
+    {:error, ExitCodes.exit_code_for(result),
+     "Object (queue, stream, exchange, etc) '#{name}' was not found in virtual host '#{vhost}}'"}
+  end
+
+  defp format_error({:error, {:not_found, object_type, vhost, name} = result}, _opts, _) do
+    {:error, ExitCodes.exit_code_for(result),
+     "#{object_type} '#{name}' was not found in virtual host '#{vhost}}'"}
+  end
+
   defp format_error({:error, :not_found = result}, _opts, _) do
     {:error, ExitCodes.exit_code_for(result),
      "Object (queue, stream, exchange, etc) was not found"}