+" String to use for the Vim window title; with statusline printf items.
+" This is the default:
+" display filename, modification flag, full path, and program name in uppercase.
+" set titlestring=%t%(\ %M%)%(\ (%{substitute(expand(\"%:p:h\"),\ $HOME,\ \"~\",\ \"\")})%)%(\ %a%)\ -\ %{toupper(v:progname)}