DEFVAR_PER_BUFFER ("default-directory", ¤t_buffer->directory,
make_number (Lisp_String),
"Name of default directory of current buffer. Should end with slash.\n\
-Each buffer has its own value of this variable.");
+Each buffer has its own value of this variable. To change the\n\
+default directory, use function `cd'.");
DEFVAR_PER_BUFFER ("auto-fill-function", ¤t_buffer->auto_fill_function,
Qnil,