patch 7.4.2128
Problem:    Memory leak when saving for undo fails.
Solution:   Free allocated memory. (Hirohito Higashi)
diff --git a/src/version.c b/src/version.c
index 5137121..05df68e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2128,
+/**/
     2127,
 /**/
     2126,