[test] fix test_auto_mem test
[test] fix test_auto_mem test


acleasby/lnav,sureshsundriyal/lnav,sureshsundriyal/lnav,acleasby/lnav,sureshsundriyal/lnav,acleasby/lnav,acleasby/lnav,tstack/lnav,tstack/lnav,acleasby/lnav,sureshsundriyal/lnav,tstack/lnav,tstack/lnav