related to Explicit error messages .
the “permission denied” error would be more useful if it told me the machine on which the permission was denied. was it my client13 that failed to set read permission sufficiently nicely, or my client5 that failed to have write permission?
bonus: if it is an enclosing directory write error, it would be even nicer if this could be noted, too. if there are uid issues (typically in my case inadvertent root ownership, a special case) a hint to this effect would be good, too.
hopefully, this is not difficult.