5166 sendmail package should be replaceable

*** 1898,1902 ****
--- 1898,1906 ----
  depend fmri=system/data/terminfo type=require
  #
  # Depend on zoneinfo data.
  #
  depend fmri=system/data/zoneinfo type=require
+ #
+ # The mailx binary calls sendmail
+ #
+ depend fmri=system/network/mailwrapper type=require