refactor(cli): extract --out handling into method to satisfy RuboCop

Author: JuanVqz

lib/skunk/cli/options/argv.rb

@@ -23,13 +23,7 @@ def parse
               self.mode = :compare_branches
             end
 
-            opts.on("-o", "--out console,json,html", Array, "Output formats or file") do |values|
-              if values.all? { |val| Skunk::Config.supported_format?(val.to_sym) }
-                Skunk::Config.formats = values.map(&:to_sym)
-              else
-                self.output_filename = values.join(",")
-              end
-            end
+            opts.on("-o", "--out console,json,html", Array, "Output formats or file") { |values| parse_out_option(values) }
 
             opts.on_tail("-v", "--version", "Show gem's version") do
               self.mode = :version
@@ -44,6 +38,16 @@ def parse
         def to_h
           super.merge(output_filename: output_filename)
         end
+
+        private
+
+        def parse_out_option(values)
+          if values.all? { |val| Skunk::Config.supported_format?(val.to_sym) }
+            Skunk::Config.formats = values.map(&:to_sym)
+          else
+            self.output_filename = values.join(",")
+          end
+        end
       end
     end
   end