* 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
The debug logging is verbose and sometimes hard to read.
Demote some of the boilerplate output to log level 9, to make it easier
to see the important parts on lower verbosity levels.
