[DOC] irb is a bundled gem now

nobu · nobu · commit 0aae9e2afad4 · 2025-08-04T02:02:33.000+09:00
diff --git a/.rdoc_options b/.rdoc_options
@@ -9,7 +9,6 @@ rdoc_include:
 - doc
 
 exclude:
-- \Alib/irb
 - \.gemspec\z
 
 autolink_excluded_words:
