message: disable console
diff: @@ -18,13 +18,17 @@ local function wait_second()
  end
  -- subprocess.spawn
  -local lua = subprocess.spawn { exe }
  +local lua = subprocess.spawn {
  + exe,
  + console = 'disable'
  +}
  assert(lua ~= nil)
  fs.remove(fs.path 'temp')
  local lua = subprocess.spawn {
  exe,
  - '-e', 'io.open("temp", "w"):close()'
  + '-e', 'io.open("temp", "w"):close()',
  + console = 'disable'
  }
  assert(lua ~= nil)
  wait_second()
  @@ -49,7 +53,10 @@ assert(lua ~= nil)
  assert(lua:is_running() == true)
  -- kill
  -local lua = subprocess.spawn { exe }
  +local lua = subprocess.spawn {
  + exe,
  + console = 'disable'
  +}
  assert(lua ~= nil)
  assert(lua:is_running() == true)
  assert(lua:kill() == true)
  @@ -57,7 +64,10 @@ assert(lua:is_running() == false)
  assert(lua:kill() == false)
  -- get_id
  -local lua = subprocess.spawn { exe }
  +local lua = subprocess.spawn {
  + exe,
  + console = 'disable'
  +}
  assert(lua ~= nil)
  local id = lua:get_id()
  local f = io.popen(('tasklist /FI "PID eq %d"'):format(id), 'r')
  @@ -71,6 +81,7 @@ local lua, stdin, stdout, stderr = subprocess.spawn {
  stdin = true,
  stdout = true,
  stderr = true,
  + console = 'disable'
  }
  assert(lua ~= nil)
  assert(stdin ~= nil)
  