Mention that NETWORKING is probably the right value for early_late_divider in a jail.
Mention that NETWORKING is probably the right value for
early_late_divider in a jail.

Add an explcit Xr for jail(8)

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