fix the syntax in the sonar configuration (fix #126)

fix the syntax in the sonar configuration (fix #126)

I drop the #126 PR that propose to kill that config item all together
because I really think that sonar should not feel too much concerned
by our logging macros.

Yes they increase the nesting level if you expend them, but nobody
expends them mentaly. We use them as inline functions even if we
cannot implement them as functions for technical reasons.