p_opendir: Attempts to open a directory in a file browser
Description
Attempts to open a directory in a file browser.
Opening a directory isn't a platform independent
but it is used in more than one function so moving
this functionality to its own non-exported function
makes sense.
Usage
p_opendir(dir = getwd())
Arguments
dir
A character string representing the path
(either relative or absolute) to the directory to be opened.
Defaults to the working directory.