Document _SC_IOV_MAX.  Add cross-references to pathconf(2), confstr(3), and getconf(1).  This document still needs to be sorted and to have other missing parameters described.
Document _SC_IOV_MAX.  Add cross-references to pathconf(2), confstr(3), and
getconf(1).  This document still needs to be sorted and to have other missing
parameters described.

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