Fix various pool_error/log format errors. Patch provided by Akio Ishida.
Fix various pool_error/log format errors.
Patch provided by Akio Ishida.

treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres,treasure-data/prestogres