remove '.' as an R language editor.wordSeparators

[opasche]

Removing '.' from the R word separators

Variable and function names in R can have the . character in them.
Removing it from the "[r]": "editor.wordSeparators" enables selection of the whole variable or function name instead of just part of it.

Example

Double-clicking on the base function as.matrix in the editor:

• before change: only selects either as or matrix.
• after change: selects as.matrix

I think the latter is a more desirable behaviour when editing an R file.

[renkun-ken]

LGTM Thanks!