merge revision(s) 56980,56981: [Backport #13004]

	extension.rdoc: fix rb_get_kwargs [ci skip]

	* doc/extension.rdoc: [DOC] optional keyword arguments are
  defaulted to Qundef.  ignored keys are kept in the hash but a
  new Hash is not created.  [ruby-dev:49893] [Bug #13004]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@57346 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 14d3b7d285..c5be6e33d1 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.3.3"
 #define RUBY_RELEASE_DATE "2017-01-17"
-#define RUBY_PATCHLEVEL 230
+#define RUBY_PATCHLEVEL 231
 
 #define RUBY_RELEASE_YEAR 2017
 #define RUBY_RELEASE_MONTH 1