[Rd] small documentation change: maxCol -> max.col in maxCol.Rd?

[Dan Davison]

There is no function called 'maxCol' in 2.7.0, so should 'maxCol' be purged from maxCol.Rd  and 'max.col' be promoted from an alias (and the file renamed)?

from today's R-devel:

/usr/local/src/R-devel> head ./src/library/base/man/maxCol.Rd
% File src/library/base/man/maxCol.Rd
% Part of the R package, http://www.R-project.org
% Copyright 1995-2007 R Core Development Team
% Distributed under GPL 2 or later

\name{maxCol}
\alias{max.col}
\title{Find Maximum Position in Matrix}
\description{
  Find the maximum position for each row of a matrix, breaking ties at random.

Dan