Fix pep8 issue in normalize-by-median
Fix pep8 issue in normalize-by-median

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