[oe] Please mention "why" in the commit messages

[Leon Woestenberg]

Hello all,

I am continuously running into build errors that relate to recent
commits and I try to find fixes for them.

However, the trend is that recent commit messages do not always tell
_why_ the change was needed., i.e. what does the commit solve?

Therefore, a kind request to summarize this in your commits:

1) tell _what_ has changed.
2) tell _why_ is has changed, i.e. what does the commit solve?


Regards,
-- 
Leon