Some more idiomatic Ruby code.

.rubocop.yml

@@ -1,2 +1,5 @@
 Style/IndentationWidth:
     Width: 4
+
+Metrics/LineLength:
+    Max: 160

easyoptions.rb

@@ -122,7 +122,7 @@ module EasyOptions
             doc = doc.find_all do |line|
                 line =~ /^##[^#]*/
             end
-            doc = doc.map do |line|
+            doc.map do |line|
                 line.strip!
                 line.sub!(/^## ?/, '')
                 line.gsub!(/@script.name/, File.basename($PROGRAM_NAME))
@@ -202,14 +202,14 @@ module EasyOptions
                 else
                     puts @documentation
                 end
-                exit -1
+                exit(-1)
             end
 
             # Regular arguments
             next_is_value = false
             raw_arguments.each do |argument|
                 if argument.start_with?('-')
-                    known_option = @known_options.find { |known_option| known_option.in?(argument) }
+                    known_option = @known_options.find { |option| option.in?(argument) }
                     next_is_value = (known_option && !known_option.boolean)
                 else
                     arguments << argument unless next_is_value
@@ -218,7 +218,7 @@ module EasyOptions
             end
 
             # Bash support
-            if BashOutput
+            return unless BashOutput
             @options.keys.each do |name|
                 puts "#{name}=\"#{@options[name].to_s.sub('true', 'yes')}\""
             end
@@ -227,7 +227,6 @@ module EasyOptions
                 puts "arguments+=(\"#{argument}\")"
             end
         end
-        end
 
         def self.finish(error)
             $stderr.puts "Error: #{error}."