Fixed --outdir when using --label-by-group in sweep-reads-buffered
Fixed --outdir when using --label-by-group in sweep-reads-buffered

Winterflower/khmer,ged-lab/khmer,Winterflower/khmer,souravsingh/khmer,ged-lab/khmer,souravsingh/khmer,ged-lab/khmer,jas14/khmer,F1000Research/khmer,jas14/khmer,jas14/khmer,F1000Research/khmer,kdmurray91/khmer,Winterflower/khmer,souravsingh/khmer,kdmurray91/khmer,F1000Research/khmer,kdmurray91/khmer