diff --git a/21/7df51f0e5d9824ed712a4d175f555d932e44d8 b/21/7df51f0e5d9824ed712a4d175f555d932e44d8
new file mode 100644
index 0000000000..8ab9de9164
--- /dev/null
+++ b/21/7df51f0e5d9824ed712a4d175f555d932e44d8
@@ -0,0 +1 @@
+Merged: https://github.com/ruby/ruby/pull/4942