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

[Stefan Monnier]

> But to get a feeling for the margin of error, here's the result of
> running a modified script, which sorted all "spaces 0, tabs 0" files into
> the "spaces" bucket:

> C:     tabs => 17422,  spaces =>  16683
> C++:   tabs =>  7366,  spaces =>  44641
> JS:    tabs => 30100,  spaces => 143709
> Java:  tabs => 66922,  spaces =>  98886
> Elisp: tabs =>   515,  spaces =>   2423

That suggests that it might be OK to set indent-tabs-mode to nil in
javascript-mode and in elisp-mode.  Maybe even in C++.  But clearly not
in C nor in Java.


        Stefan