Mark Ruby 2.3.0 as supported

Fixes: https://github.com/wincent/wikitext/issues/3

diff --git a/ext/wikitext/extconf.rb b/ext/wikitext/extconf.rb
index 959b8dc508e6589fba8099b644556cf2c35365e3..6eb844e0743fcd53393f09426f8363c5919e380e 100644 (file)
--- a/ext/wikitext/extconf.rb
+++ b/ext/wikitext/extconf.rb
@@ -28,7 +28,7 @@ def missing item
   exit 1
 end
 
-if RUBY_VERSION !~ /\A2\.[012]\./
+if RUBY_VERSION !~ /\A2\.[0123](\.|$)/
   raise "unsupported Ruby version: #{RUBY_VERSION}"
 end