bug#10489: 24.0.92; dired-do-copy may create infinite directory hierarchy

[Stefan Monnier]

> `files-equal-p' still returns t for two non-existing files. Shall be
> fixed too.

I don't see why that should be fixed: files-equal-p only works for
existing files.  If one or both of the files don't exist, the return
value is unspecified.  Oh, yes, the doc needs to be fixed to say it clearly.

> Btw, this is the only primitive function which has the prefix "files-",
> all other start with prefix "file-". Is this necessary?

Agreed, using "file-" would be better.


        Stefan