Fix RuboCop offenses introduced in version 0.20.0

.rubocop.yml

@@ -1,5 +1,5 @@
 AllCops:
-  Includes:
+  Include:
     - 'Gemfile'
     - 'Rakefile'
     - 'twitter.gemspec'
@@ -90,3 +90,6 @@ PercentLiteralDelimiters:
     '%w': '[]'
     '%W': '[]'
     '%x': ()
+
+NonNilCheck:
+  Enabled: false

Gemfile

@@ -17,7 +17,7 @@ group :test do
   gem 'coveralls', :require => false
   gem 'mime-types', '~> 1.25', :platforms => [:jruby, :ruby_18]
   gem 'rspec', '>= 2.14'
-  gem 'rubocop', '>= 0.16', :platforms => [:ruby_19, :ruby_20, :ruby_21]
+  gem 'rubocop', '>= 0.20', :platforms => [:ruby_19, :ruby_20, :ruby_21]
   gem 'simplecov', :require => false
   gem 'timecop', '0.6.1'
   gem 'webmock'

lib/twitter/rest/client.rb

@@ -107,7 +107,7 @@ def request(method, path, params = {}, headers = {})
       rescue Faraday::Error::TimeoutError, Timeout::Error => error
         raise(Twitter::Error::RequestTimeout.new(error))
       rescue Faraday::Error::ClientError, JSON::ParserError => error
-        fail(Twitter::Error.new(error))
+        raise(Twitter::Error.new(error))
       end
 
       def request_headers(method, path, params = {}, signature_params = params)

spec/helper.rb

@@ -1,10 +1,7 @@
 require 'simplecov'
 require 'coveralls'
 
-SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
-  SimpleCov::Formatter::HTMLFormatter,
-  Coveralls::SimpleCov::Formatter
-]
+SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[SimpleCov::Formatter::HTMLFormatter, Coveralls::SimpleCov::Formatter]
 
 SimpleCov.start do
   add_filter '/spec/'