Ignore chomp! result and return the modified string

Author: nobu

ext/io/console/console.c

@@ -1562,7 +1562,7 @@ static VALUE
 str_chomp(VALUE str)
 {
     if (!NIL_P(str)) {
-	str = rb_funcallv(str, rb_intern("chomp!"), 0, 0);
+	rb_funcallv(str, rb_intern("chomp!"), 0, 0);
     }
     return str;
 }

test/io/console/test_io_console.rb

@@ -235,6 +235,15 @@ def test_getpass
       assert_equal("\r\n", r.gets)
       assert_equal("\"asdf\"", r.gets.chomp)
     end
+
+    run_pty("p IO.console.getpass('> ')") do |r, w|
+      assert_equal("> ", r.readpartial(10))
+      sleep 0.1
+      w.print "asdf\C-D\C-D"
+      sleep 0.1
+      assert_equal("\r\n", r.gets)
+      assert_equal("\"asdf\"", r.gets.chomp)
+    end
   end
 
   def test_iflush