5166 sendmail package should be replaceable

*** 294,303 ****
--- 294,304 ----
                  lpshut.1m               \
                  lpsystem.1m             \
                  lpusers.1m              \
                  luxadm.1m               \
                  mail.local.1m           \
+                 mailwrapper.1m          \
                  makedbm.1m              \
                  makemap.1m              \
                  mdmonitord.1m           \
                  medstat.1m              \
                  metaclear.1m            \