patch 8.1.2372: VMS: failing realloc leaks memory

Problem:    VMS: failing realloc leaks memory. (Chakshu Gupta)
Solution:   Free the memory. (partly fixes #5292)
diff --git a/src/version.c b/src/version.c
index 281fafc..7906075 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2372,
+/**/
     2371,
 /**/
     2370,