* Support --enable-debug-logs=no option of configure script
* Undo unintended white space changes
* Undo more unintended white space changes
* Address review comments - thanks Mirko
* Address more review comments - thanks Mirko
This misspelling is confusing (is it allow one more rule, or all of
them?) and since v3 isn't released yet, use the major version bump
opportunity to rectify it.