COMMIT Add Kernel#singleton_class specs, based on http://redmine.ruby-lang.org/repositories/diff/ruby-19/test/ruby/test_object.rb?rev=27022	http://github.com/rubyspec/rubyspec/commit/c34db2a2f47d1d122e12cd14c179e05ac0f23890
COMMIT Revert a62bd92a4 and 951d425f.	http://github.com/rubyspec/rubyspec/commit/3d881893babc5275c597bb30fe17064a7fc139f4
COMMIT StringIO#pos= should after reaching EOF. (See http://jira.codehaus.org/browse/JRUBY-4683)	http://github.com/rubyspec/rubyspec/commit/361aed8ac7f5d133ee027a43725de6d5d42b7a3c
COMMIT Better descriptions	http://github.com/rubyspec/rubyspec/commit/951d425f99d53157912c20cd1384ed22e11f6c99
COMMIT Refactoring: merges out and err features	http://github.com/rubyspec/rubyspec/commit/a62bd92a4defa48b5816bc6c4e1e4b6a249a4f15
COMMIT Added cases about :out => IO and :err => IO	http://github.com/rubyspec/rubyspec/commit/6b24e9e0cd10bdfb29b0f834a35240f4081ab0a7
COMMIT Added cases about :out, using samples of :err	http://github.com/rubyspec/rubyspec/commit/e67c591d899389350403e13dee097f3b04cfd81e
COMMIT Typofixes	http://github.com/rubyspec/rubyspec/commit/fd330245cf96af0c3ca07e7d3a366f2ddbdaf28e

===================================================================
+++ 20100401T051428
@@ 11 @@
 URL: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1
 ?\227?\131?\170?\227?\131?\157?\227?\130?\184?\227?\131?\136?\227?\131?\170?\227?\129?\174?\227?\131?\171?\227?\131?\188?\227?\131?\136: http://svn.ruby-lang.org/repos/ruby
 ?\227?\131?\170?\227?\131?\157?\227?\130?\184?\227?\131?\136?\227?\131?\170 UUID: b2dd03c8-39d4-4d8f-98ff-823fe69b080e
+?\227?\131?\170?\227?\131?\147?\227?\130?\184?\227?\131?\167?\227?\131?\179: 27133
 ?\227?\131?\142?\227?\131?\188?\227?\131?\137?\231?\168?\174?\229?\136?\165: ?\227?\131?\135?\227?\130?\163?\227?\131?\172?\227?\130?\175?\227?\131?\136?\227?\131?\170
 ?\230?\186?\150?\229?\130?\153?\228?\184?\173?\227?\129?\174?\229?\135?\166?\231?\144?\134: ?\231?\137?\185?\227?\129?\171?\227?\129?\170?\227?\129?\151
 ?\230?\156?\128?\231?\181?\130?\229?\164?\137?\230?\155?\180?\232?\128?\133: yugui
@@ 19749 @@
 /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/ruby/ext/tk/sample/tkmultilistbox.rb:<line_a>: warning: shadowing outer local variable - idx
 /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/ruby/ext/tk/sample/tkmultilistbox.rb:<line_b>: warning: `*' interpreted as argument prefix
 <elapsed> s: .
+TestSystem#test_system: /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/tmp/ruby_script_tmp20100401-56128-14djsbm/ruby_script_tmp.56128:<line_a>: warning: global variable `$zzz' not initialized
 <elapsed> s: .
 TestTCPSocket#test_encoding: <elapsed> s: .
 TestTCPSocket#test_recvfrom: <elapsed> s: .
@@ 43107 @@
 Finished in <t> seconds
 
 1 file, 1 example, 1 expectation, 0 failures, 0 errors
+== rubyspec/core/kernel/singleton_class_spec.rb # <time>
++ bin/ruby mspec/bin/mspec -V -f s -B /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/ruby.1.9.mspec -t /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/bin/ruby rubyspec/core/kernel/singleton_class_spec.rb
 ruby <version>
 
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb
+Kernel#singleton_class
+- returns class extended from an object (ERROR - <n>)
+- returns NilClass for nil (ERROR - <n>)
+- returns TrueClass for true (ERROR - <n>)
+- returns FalseClass for false (ERROR - <n>)
+- raises TypeError for Fixnum (FAILED - <n>)
+- raises TypeError for Symbol (FAILED - <n>)
 
 
  <n>) 
+Kernel#singleton_class returns class extended from an object ERROR
+NoMethodError: undefined method `singleton_class' for #<Object:0x<address>>
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:6:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
  <n>) 
+Kernel#singleton_class returns NilClass for nil ERROR
+NoMethodError: undefined method `singleton_class' for nil:NilClass
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:10:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
  <n>) 
+Kernel#singleton_class returns TrueClass for true ERROR
+NoMethodError: undefined method `singleton_class' for true:TrueClass
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:14:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
  <n>) 
+Kernel#singleton_class returns FalseClass for false ERROR
+NoMethodError: undefined method `singleton_class' for false:FalseClass
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:18:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
  <n>) 
+Kernel#singleton_class raises TypeError for Fixnum FAILED
 Expected TypeError
+but got NoMethodError (undefined method `singleton_class' for 123:Fixnum)
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:22:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
  <n>) 
+Kernel#singleton_class raises TypeError for Symbol FAILED
 Expected TypeError
+but got NoMethodError (undefined method `singleton_class' for :foo:Symbol)
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:26:in `block (3 levels) in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:2:in `block in <top (required)>'
+/Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/core/kernel/singleton_class_spec.rb:1:in `<top (required)>'
 
 Finished in <t> seconds
 
+1 file, 6 examples, 3 expectations, 2 failures, 4 errors
 exit 1
+failed(rubyspec/core/kernel/singleton_class_spec.rb)
 == rubyspec/core/kernel/singleton_method_added_spec.rb # <time>
 + bin/ruby mspec/bin/mspec -V -f s -B /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/ruby.1.9.mspec -t /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/bin/ruby rubyspec/core/kernel/singleton_method_added_spec.rb
 ruby <version>
@@ 43246 @@
 - joins a new process group if :pgroup => true
 - uses the current working directory as its working directory
 - uses the given working directory if :chdir => dir is supplied
+- redirects STDOUT to the given file descriptior if :out => Fixnum
+- redirects STDOUT to the given file if :out => String
+- redirects STDOUT to the given file if :out => IO
+- redirects STDERR to the given file descriptior if :err => Fixnum
 - redirects STDERR to the given file if :err => String
+- redirects STDOUT to the given file if :err => IO
 
 
 Finished in <t> seconds
@@ 72647 @@
 
 Finished in <t> seconds
 
+1 file, 36 examples, 30605 expectations, 0 failures, 0 errors
 == rubyspec/library/prime/instance_spec.rb # <time>
 + bin/ruby mspec/bin/mspec -V -f s -B /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/ruby.1.9.mspec -t /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/bin/ruby rubyspec/library/prime/instance_spec.rb
 ruby <version>
@@ 77993 @@
 StringIO#pos=
 - updates the current byte offset
 - raises an EINVAL if given a negative argument
+- updates the current byte offset after reaching EOF
 
 
 Finished in <t> seconds

===================================================================
--- 20100331T045535
@@ 11 @@
 URL: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1
 ?\227?\131?\170?\227?\131?\157?\227?\130?\184?\227?\131?\136?\227?\131?\170?\227?\129?\174?\227?\131?\171?\227?\131?\188?\227?\131?\136: http://svn.ruby-lang.org/repos/ruby
 ?\227?\131?\170?\227?\131?\157?\227?\130?\184?\227?\131?\136?\227?\131?\170 UUID: b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-?\227?\131?\170?\227?\131?\147?\227?\130?\184?\227?\131?\167?\227?\131?\179: 27123
 ?\227?\131?\142?\227?\131?\188?\227?\131?\137?\231?\168?\174?\229?\136?\165: ?\227?\131?\135?\227?\130?\163?\227?\131?\172?\227?\130?\175?\227?\131?\136?\227?\131?\170
 ?\230?\186?\150?\229?\130?\153?\228?\184?\173?\227?\129?\174?\229?\135?\166?\231?\144?\134: ?\231?\137?\185?\227?\129?\171?\227?\129?\170?\227?\129?\151
 ?\230?\156?\128?\231?\181?\130?\229?\164?\137?\230?\155?\180?\232?\128?\133: yugui
@@ 19749 @@
 /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/ruby/ext/tk/sample/tkmultilistbox.rb:<line_a>: warning: shadowing outer local variable - idx
 /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/ruby/ext/tk/sample/tkmultilistbox.rb:<line_b>: warning: `*' interpreted as argument prefix
 <elapsed> s: .
-TestSystem#test_system: /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/tmp/ruby_script_tmp20100331-60187-14djsbm/ruby_script_tmp.60187:<line_a>: warning: global variable `$zzz' not initialized
 <elapsed> s: .
 TestTCPSocket#test_encoding: <elapsed> s: .
 TestTCPSocket#test_recvfrom: <elapsed> s: .
@@ 43183 @@
 - joins a new process group if :pgroup => true
 - uses the current working directory as its working directory
 - uses the given working directory if :chdir => dir is supplied
-- redirects STDERR to the given file descriptior if if :err => Fixnum
 - redirects STDERR to the given file if :err => String
 
 
@@ 72580 @@
 
 Finished in <t> seconds
 
-1 file, 36 examples, 30721 expectations, 0 failures, 0 errors
 == rubyspec/library/prime/instance_spec.rb # <time>
 + bin/ruby mspec/bin/mspec -V -f s -B /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/rubyspec/ruby.1.9.mspec -t /Users/chkbuild/chkbuild/tmp/build/ruby-1.9.1/<buildtime>/bin/ruby rubyspec/library/prime/instance_spec.rb
 ruby <version>