Update isort to 4.3.18#615

sliverc merged 1 commit intomasterdjango-json-api/django-rest-framework-json-api:masterfrom

pyup-update-isort-4.3.17-to-4.3.18django-json-api/django-rest-framework-json-api:pyup-update-isort-4.3.17-to-4.3.18Copy head branch name to clipboard