[Rd] Example of environment

[Henrik Bengtsson]

A minor comment: in help(environment) the example starts with:

##-- all three give the same:
     environment()
     environment(environment)
     .GlobalEnv

but the comment is not true. The second returns the "<environment:
namespace:base>".

"R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.3.0 alpha (2006-04-02 r37626)"

/Henrik