prettify shellwords usage

lib/rspec/core/configuration_options.rb

@@ -123,7 +123,7 @@ def options_from(path)
       def args_from_options_file(path)
         return [] unless path && File.exist?(path)
         config_string = options_file_as_erb_string(path)
-        config_string.split(/\n+/).map {|l| Shellwords.shellwords(l) }.flatten
+        config_string.split(/\n+/).map(&:shellsplit).flatten
       end
 
       def options_file_as_erb_string(path)

lib/rspec/core/rake_task.rb

@@ -151,15 +151,11 @@ def run_task(verbose)
 
     private
 
-      def shellescape(string)
-        string.shellescape
-      end
-
       def files_to_run
         if ENV['SPEC']
           FileList[ ENV['SPEC'] ].sort
         else
-          FileList[ pattern ].sort.map { |f| shellescape(f) }
+          FileList[ pattern ].sort.map(&:shellescape)
         end
       end