Tidy up the rpc_soc.3nsl manual
manpage - manual pages
Working through 14705 and viewing the affected pages, rpc_soc.3nsl needs a bit more work
.UX should be UNIX
missing return types in method signatures
incorrectly emboldened comma alongside "NULL" and "I/O"
on should be version
missing space in "rpcinfo-p"
typo failured should be failed
extra space in "read-only ,"