patch: don't show /tmp/ if path is unset

[David Collier-Brown]

Bjoern JACKE wrote:
>>- make shares without "path" definition "available = no" because
>>divulging /tmp/ was evil

Gerald (Jerry) Carter wrote:
 > This one breaks backwards compatibility.  Which I can go
> along with as long as everyone agrees it is a good idea.
> We need to make sure that [IPC$] is not affected by this
> change though.

  This is more something to diagnose than something that
should make the share disappear in a little puff of
greasy smoke (;-))

--dave
-- 
David Collier-Brown,      | Always do right. This will gratify
Sun Microsystems, Toronto | some people and astonish the rest
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