Makefile: Run flakes explictly only inside isso/
This fixes an annoyance for people who have a virtualenv
installed under e.g. `.venv/` where flake8 would try to
verify every single `site-packages` pip packge inside.
@@ -44,7 +44,7 @@ init:
npm install
flakes:
- flake8 . --count --max-line-length=127 --show-source --statistics
+ flake8 isso/ --count --max-line-length=127 --show-source --statistics
isso/js/%.min.js: $(ISSO_JS_SRC) $(ISSO_CSS)
$(RJS) -o isso/js/build.$*.js out=$@
