Update rubocop to version 0.34.0

.rubocop.yml

@@ -1,3 +1,6 @@
+Lint/NestedMethodDefinition:
+  Enabled: false
+
 Metrics/BlockNesting:
   Max: 2
 
@@ -20,8 +23,10 @@ Style/ClassVars:
   Enabled: false
 
 Style/CollectionMethods:
+  Enabled: true
   PreferredMethods:
     map:      'collect'
+    map!:     'collect!'
     reduce:   'inject'
     find:     'detect'
     find_all: 'select'

Gemfile

@@ -6,7 +6,7 @@ gemspec
 gem 'rake'
 
 group :development do
-  platforms :ruby_19, :ruby_20, :ruby_21 do
+  platforms :ruby_19, :ruby_20, :ruby_21, :ruby_22 do
     gem 'guard'
     gem 'guard-bundler'
     gem 'guard-rspec'
@@ -21,5 +21,5 @@ group :test do
   gem 'mime-types', '~> 1.25', :platforms => [:jruby, :ruby_18]
   gem 'rest-client', '~> 1.6.0', :platforms => [:jruby, :ruby_18]
   gem 'rspec', '>= 2.14'
-  gem 'rubocop', '~> 0.31.0', :platforms => [:ruby_19, :ruby_20, :ruby_21]
+  gem 'rubocop', '~> 0.34.0', :platforms => [:ruby_19, :ruby_20, :ruby_21, :ruby_22]
 end

lib/naught/null_class_builder/commands/mimic.rb

@@ -21,7 +21,7 @@ def initialize(builder, class_to_mimic_or_options, options = {})
             @singleton_class = NULL_SINGLETON_CLASS
             @class_to_mimic  = class_to_mimic_or_options
           end
-          @include_super     = options.fetch(:include_super) { true }
+          @include_super = options.fetch(:include_super) { true }
 
           builder.base_class   = root_class_of(@class_to_mimic)
           class_to_mimic       = @class_to_mimic

lib/naught/null_class_builder/commands/pebble.rb

@@ -13,7 +13,7 @@ def call
           defer do |subject|
             subject.module_exec(@output) do |output|
               define_method(:method_missing) do |method_name, *args|
-                pretty_args = args.collect(&:inspect).join(', ').gsub("\"", "'")
+                pretty_args = args.collect(&:inspect).join(', ').tr("\"", "'")
                 output.puts "#{method_name}(#{pretty_args}) from #{parse_caller}"
                 self
               end