[R] sort order of a character sequence is different on windose and linux (linux result)

[Witold E Wolski]

It seems that the package I am developing depends on the locale "C"
because of interactions with other packages (data.table).

So I would like to set the locale to "C" as soon as the package is loaded.
Where can I do it .. I could of course set it in every function in my
package but...