Apply pep8
Apply pep8

* wqflask/utility/svg.py: Apply pep8 to fix indentation error when running
`2to3-3.8 -w .`:
````
RefactoringTool: Can't parse ./wqflask/utility/svg.py: IndentationError: unindent does not match any outer indentation level (<tokenize>, line 403)
````

zsloan/genenetwork2,pjotrp/genenetwork2,pjotrp/genenetwork2,zsloan/genenetwork2,zsloan/genenetwork2,pjotrp/genenetwork2,zsloan/genenetwork2,pjotrp/genenetwork2,genenetwork/genenetwork2,pjotrp/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2