use gnu's ls for dired when available on darwin
use gnu's ls for dired when available on darwin

danrharms/harmsway,articuluxe/harmsway,articuluxe/harmsway,articuluxe/harmsway,articuluxe/harmsway,danrharms/harmsway,articuluxe/harmsway,danrharms/harmsway,danrharms/harmsway,articuluxe/harmsway,danrharms/harmsway,danrharms/harmsway,articuluxe/harmsway,articuluxe/harmsway