allow clearing an environment variable
allow clearing an environment variable

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