[ODE] Formatting of ODE code

[Remi Ricard]

Hi,

I downloaded the all the ODE unstable files and look at them and
found that some use "tab" and some use "space" for indenting the
code.

Since my tab are set to 8 spaces this give me some strange indenting.

I was wondering if the ODE code has some formatting convention ?

Since I will contribute to the ODE code (in the near future) I want to
follow the ODE format and also be able to see the code nicely formatted.

Remi