fixed pep8 issues in test/async_finder.py
fixed pep8 issues in test/async_finder.py

drptbl/splinter,nikolas/splinter,gjvis/splinter,myself659/splinter,myself659/splinter,drptbl/splinter,gjvis/splinter,bubenkoff/splinter,underdogio/splinter,cobrateam/splinter,nikolas/splinter,objarni/splinter,gjvis/splinter,underdogio/splinter,drptbl/splinter,lrowe/splinter,objarni/splinter,bmcculley/splinter,myself659/splinter,cobrateam/splinter,lrowe/splinter,bmcculley/splinter,cobrateam/splinter,underdogio/splinter,lrowe/splinter,nikolas/splinter,objarni/splinter,bmcculley/splinter,bubenkoff/splinter