[Rd] typo in dev2bitmap.R (PR#7966)

[weigand@mayo.edu]

Full_Name: Stephen Weigand
Version: 2.0.1
OS: solaris2.9
Submission from: (NULL) (129.176.151.21)


R> bitmap("")

produces the following error message as of the June 23 download of R-devel:

Error in bitmap("") : 'file' is must be a non-empty character string
                             
The word "is" should deleted.

This appears to be a typo in dev2bitmap.R (appearing twice in unix/dev2bitmap.R
and twice in windows/dev2bitmap.R). 

Other affected files include

grDevices/po/R-grDevices.pot

grDevices/po/R-it.po

grDevices/po/R-en at quot.po

grDevices/po/R-en at quot.po

grDevices/po/R-ja.po

grDevices/po/R-ko.po

Thank you,

Stephen Weigand