like get :blah, :to => "something#else" which should address #9

like User.new(:human => true)

where target is separated from search method
like Blah.something.something.target

to find things line User.human.alive.find(...)

in CallIndex

like User.active.awesome.find(...)

if it is from ActionView::Helpers::UrlHelper.
So redirect_to(url_for(params)) is considered safe

if available

for tracking where a Sexp came from

which looked strange when no warnings were reported but the summary said
there were.

Add option to exit with nonzero exit code when warnings found

Put exit code constant in Brakeman namespace; use Checks#all_warnings, not #warnings ; don't steal the -s option