module SimpleCov::ExitCodes

warning logs. `print_errors false` remains the intended opt-out.
test setups) intercept them mid-`at_exit`, and fed colorized text to
code, let `Warning.warn` hooks (warning trackers, raise-on-warning
`Kernel#warn` made `-W0` swallow the explanation for a failing exit
the enforcement feature, not Ruby warnings: routing them through
Threshold-violation reports and exit-status notices are the output of

def self.print_error(message)
  $stderr.puts message # rubocop:disable Style/StderrPuts
end