[Rd] example in ?plot.window is incorrect (PR#8524)

[jgvcqa@rit.edu]

Full_Name: Joe Voelkel
Version: R 2.2.0
OS: Windows
Submission from: (NULL) (67.139.200.41)


In ?plot.window, the example includes the argument
   names(eurodist)

in the text function. The argument should be 
   attr(eurodist,"Labels")