* impl --log-new, --log-append * Update common/log.h Co-authored-by: cebtenzzre <cebtenzzre@gmail.com> * Update common/log.h Co-authored-by: cebtenzzre <cebtenzzre@gmail.com> * Apply suggestions from code review Co-authored-by: cebtenzzre <cebtenzzre@gmail.com> --------- Co-authored-by: cebtenzzre <cebtenzzre@gmail.com>