delivery_rate.c: use slog() with varargs for logging errors
dossl.c, dossl.h: prototype change for quit function with varargs
Makeflie: added varargs.h dependency for files using varargs
qmail-smtpd.c, qmail-greyd.c: logerr(), out() changed to have varargs
qmail-remote.c, starttls.c: quit() function changed to have varargs
qmail-remote.c: handle auth smtp error codes using decode_smtpauth_err() as per RFC4954
qmail-remote.c: Use env variable SMPTS to immediately start in encrypted mode
qmail-send.c, qmta-send.c, slowq-send.c: use slog() function with varargs to log error messages
slowq-send.c: use todo_log() function with varargs to communicate with todo process 10.qsutil.c: use slog() function with varargs to replace all log functions 11.todo-proc.c: use todo_log() function with varargs to log messages to
qmail-send