Looking up shell folders creates real directories when the folder is
inexistant, but the intended behavior for some folders is to create
symbolic links by default. Prepare that change by moving the helper
function above shell folders lookup functions. Also fix whitespace
issues in the moved code.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=22974Signed-off-by: Olivier F. R. Dierick <o.dierick@piezo-forte.be>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>