docs/181576: make.1: make is bmake but man make documents pmake

[linimon at FreeBSD.org]

Old Synopsis: make is bmake but man make documents pmake
New Synopsis: make.1: make is bmake but man make documents pmake

Responsible-Changed-From-To: freebsd-bugs->freebsd-doc
Responsible-Changed-By: linimon
Responsible-Changed-When: Sun May 4 05:30:24 UTC 2014
Responsible-Changed-Why: 
documentation bug.

http://www.freebsd.org/cgi/query-pr.cgi?pr=181576