bug#13513: 24.3.50; Going "--non-interactive" is the wrong thing for SVN on OSX

[Stefan Monnier]

> I understand why the change was made, it is just the wrong thing in those
> environments that don't have the bug being compensated for.

I don't actually know if it depends on the environment, or if it depends
on the particular use-case, but I agree that
hardcoding --non-interactive is wrong.

We should probably make it a defcustom (as for its default, I guess we
could try to make it better if we can figure out under which kinds of
conditions the switch is needed).


        Stefan