Move the condition to omit to command line option

Rakefile

@@ -32,6 +32,7 @@ Rake::TestTask.new(:test) do |t|
   end
   t.libs << "test/lib"
   t.ruby_opts << "-rhelper"
+  t.options = "--ignore-name=TestIO_Console#test_bad_keyword" if RUBY_ENGINE == "jruby"
   t.test_files = FileList["test/**/test_*.rb"]
 end
 

test/io/console/test_io_console.rb

@@ -52,9 +52,6 @@ def test_failed_path
   end if FailedPathExceptions
 
   def test_bad_keyword
-    # JRuby in CI still fails to reject this bad keyword argument
-    omit if RUBY_ENGINE == 'jruby'
-
     assert_raise_with_message(ArgumentError, /unknown keyword:.*bad/) do
       File.open(IO::NULL) do |f|
         f.raw(bad: 0)