[ruby/io-console] Fix a name error

https://github.com/ruby/io-console/commit/e0398acad4

1 files changed, 2 insertions, 2 deletions

diff --git a/test/io/console/test_io_console.rb b/test/io/console/test_io_console.rb
index cdaa255426..d43095bc4c 100644
--- a/test/io/console/test_io_console.rb
+++ b/test/io/console/test_io_console.rb
@@ -367,14 +367,14 @@ defined?(PTY) and defined?(IO.console) and TestIO_Console.class_eval do
     w.print cc
     w.flush
     result = EnvUtil.timeout(3) {r.gets}
-    if res
+    if result
       case cc
       when 0..31
         cc = "^" + (cc.ord | 0x40).chr
       when 127
         cc = "^?"
       end
-      res.sub!(cc, "")
+      result.sub!(cc, "")
     end
     assert_equal(expect, result.chomp)
   end