Merge pull request #416 from rspec/fix-jruby

Further change JRuby fix to be more permissive

Author: JonRowe

lib/rspec/support/spec/shell_out.rb

@@ -67,7 +67,8 @@ def strip_known_warnings(input)
           # This is a JRuby file that generates warnings on 9.1.7.0
           l =~ %r{org/jruby/RubyKernel\.java} ||
           # This is a JRuby gem that generates warnings on 9.1.7.0
-          l =~ %r{uninitialized constant FFI\nio/console on JRuby shells out to stty} ||
+          l =~ %r{uninitialized constant FFI} ||
+          l =~ %r{io/console on JRuby shells out to stty for most operations} ||
           # Remove blank lines
           l == "" || l.nil?
         end.join("\n")