do not delete!

gistfile1.txt

$ rake
(in /Users/ben/projects/oss/ben_string)
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -w -Ilib:bin:test:. -e 'require "rubygems"; require "test/unit"; require "test/test_ben_string.rb"' -- 
./lib/ben_string.rb:26:in `append_features': cyclic include detected (ArgumentError)
	from ./lib/ben_string.rb:26:in `include'
	from ./lib/ben_string.rb:26
	from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
	from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require'
	from ./test/test_ben_string.rb:2
	from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
	from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require'
	from -e:1
rake aborted!
Command failed with status (1): [/System/Library/Frameworks/Ruby.framework/...]

(See full trace by running task with --trace)