Gemfile in sup-0.22.1 vs Gemfile in sup-0.23

- old
+ new

@@ -1,7 +1,8 @@
 source 'https://rubygems.org/'
 
 if !RbConfig::CONFIG['arch'].include?('openbsd')
-  gem 'xapian-ruby', '~> 1.2.15'
+  # update version in ext/mkrf_conf_xapian.rb as well.
+  gem 'xapian-ruby', '~> 1.2'
 end
 
 gemspec