Re: woman doesn't work if current buffer's directory doesn't exist

[Richard Stallman]

    This should probably be fixed in call-process (I can't use
    shell-command-on-region to pipe a region of a buffer through a shell
    command if default-directory doesn't exist, for example, and I'd like
    to be able to).  Perhaps default-directory could default to the value
    of temporary-file-directory if it doesn't exist.

It would be easy to change what call-process does when
default-directory does not exist.  What is the best thing for it to do
in that case?