setup: simplify pkgconfig() to match how it's called
setup: simplify pkgconfig() to match how it's called

greatwolf/lunatic-python,albanD/lunatic-python,alexsilva/lunatic-python,alexsilva/lunatic-python,greatwolf/lunatic-python,bastibe/lunatic-python,hughperkins/lunatic-python,alexsilva/lunatic-python,hughperkins/lunatic-python,bastibe/lunatic-python,albanD/lunatic-python