make all mailer output go to the transcript if running server smtp; this

make all mailer output go to the transcript if running server smtp; this
has the effect of making some significant changes in the output structure
to handle such things as -em and -as together

SCCS-mr: usr.sbin/sendmail/src/main.c 041
SCCS-mr: usr.sbin/sendmail/src/deliver.c 041
SCCS-mr: usr.sbin/sendmail/src/err.c 041
SCCS-mr: usr.sbin/sendmail/src/version.c 041
SCCS-vsn: usr.sbin/sendmail/src/main.c 3.131
SCCS-vsn: usr.sbin/sendmail/src/deliver.c 3.126
SCCS-vsn: usr.sbin/sendmail/src/err.c 3.31
SCCS-vsn: usr.sbin/sendmail/src/version.c 3.240