Log Message:
smake: Update to 1.3nb9

Bump PKGREVISION for new libschily.

New features with AN-2020-02-11:

-  libschily: new man pages starthandlecond.3 and unhandlecond.3

-  libschily: handlecond.3 and raisecond.3 now correctly mention
   handlecond() & raisecond() instead of handle()/raise(). The old names
   from 1980 had to be renamed because os an unfriendly actt from the
   C standard commitee.

   Thanks to Eric Ackermann for reporting
   as a side effect of a code review for SchilliX-ON

-  libschily: various small fixes in various man pages from libschily.

   Thanks to Eric Ackermann for reporting
   as a side effect of a code review for SchilliX-ON