added whitespace for E225 pep8 warning
added whitespace for E225 pep8 warning

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