Fixing dired hangs when NFS mount goes AWOL

[Michael Olson]

Would you consider adding "-l" to the list of default arguments for
`directory-free-space-args'?  This will fix an issue where attempting
to open dired buffers with ls-lisp enabled hangs due to an AWOL NFS
mount.  Considering that the check is skipped if the current directory
is on a remote filesystem, I think this is a reasonable default.

-- 
Michael Olson  |  http://mwolson.org/