Include sigcode in core dumps.  This makes it possible to backtrace through signal handlers with gdb.
Include sigcode in core dumps.  This makes it possible to backtrace
through signal handlers with gdb.

ok miod@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars