Fix Rubocop offenses

Author: n-rodriguez

lib/crono/cli.rb

@@ -85,7 +85,7 @@ def parse_options(args) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
           end
 
           opts.on '-v', '--verbose', 'Print more verbose output' do |verbose|
-            config.verbose = verbose.nil? ? true : verbose
+            config.verbose = verbose.nil? || verbose
           end
         end
         parser.parse!(args)
@@ -151,6 +151,7 @@ def launch(self_read) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
         # Heroku sends TERM and then waits 30 seconds for process to exit.
         'TERM' => ->(_cli) { raise Interrupt },
       }.freeze
+      private_constant :SIGNAL_HANDLERS
 
       def handle_signal(sig)
         logger.debug "Got #{sig} signal"