bug#35287: dired-do-copy English beef-up

[Drew Adams]

> > Copy: 11 files
> > Actually "Copied 11 files" is proper English and doesn't leave us
> > somewhat worrying...
> 
> Other messages that use the same operation name:
> 
>   "Copy: 2 of 3 files skipped"
>   "Copy failed for 2 of 3 files"
> 
> Shouldn't the latter be "Copying failed"?
> So for every operation three verb forms are needed:
> "Copy", "Copying", "Copied", correct?

My own advice is to leave it alone.

If you want, for "Copy" read "Copy operation" or
"Operation Copy".

The text could even be changed to that, but
you shouldn't try for more changes than that, IMO.

(And I don't think that change is necessary or
would be very helpful.)