Fixes to man8 groff mandoc style, usage mistakes, or typos.
Fixes to man8 groff mandoc style, usage mistakes, or typos.

PR:		168016
Submitted by:	Nobuyuki Koganemaru
Approved by:	gjb
MFC after:	3 days

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