docs/162172: rctl manpage erroneously lists nproc

[linimon at FreeBSD.org]

Old Synopsis: rctl manpage lists nproc
New Synopsis: rctl manpage erroneously lists nproc

Responsible-Changed-From-To: freebsd-bugs->freebsd-doc
Responsible-Changed-By: linimon
Responsible-Changed-When: Mon Oct 31 04:27:09 UTC 2011
Responsible-Changed-Why: 
Reclassify as a docs problem.

http://www.freebsd.org/cgi/query-pr.cgi?pr=162172