Document the debug.debugger_on_panic tunable, for those poor souls who didn't realize that DDB_UNATTENDED just sets its starting value.
Document the debug.debugger_on_panic tunable, for those poor souls
who didn't realize that DDB_UNATTENDED just sets its starting
value.

This change is over 5 years late, and documents the original
semantics of debug.debugger_on_panic, which may have been changed
by the (again undocumented) change in rev 1.44 of kern_shutdown.c.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase