- Use log(9) instead of printf(9). - Print node ID, where possible. - Prepend log messages with function name, or at least with "ng_pppoe".
- Use log(9) instead of printf(9).
- Print node ID, where possible.
- Prepend log messages with function name, or at least with "ng_pppoe".

Reviewed by:	julian
Tested by:	Joao Barros <joao.barros gmail.com>

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