patch 7.4.2131
Problem:    More memory leaks when using partial, e.g. for "exit-cb".
Solution:   Don't copy the callback when using a partial.
diff --git a/src/version.c b/src/version.c
index 77a43c1..c28c38e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2131,
+/**/
     2130,
 /**/
     2129,