bug#20322: 25.0.50; indent-tabs-mode should default to nil

[Stefan Monnier]

> Is there a reason it's t by default?

There was probably a reason originally.  Nowadays, I think the main
reason it's t is because there's no sufficiently good reason to change
it (the hypothetical benefit of change will be smaller than the pain of
having to suffer through too many people bitching at the change).

I.e. this is kind of like endianness.


        Stefan