.sp -> .Pp
.sp -> .Pp

"... Pa /etc/resolv.conf" -> "...\n.Pa /etc/resolv.conf"

.Po and .Pc reported as broken, replaced with "(" and ")"

PR:		docs/7819
Submitted by:	yohta@bres.tsukuba.ac.jp

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