patch 8.1.2370: build problems on VMS

Problem:    Build problems on VMS.
Solution:   Adjust the build file. (Zoltan Arpadffy)
diff --git a/src/version.c b/src/version.c
index 65f7235..f2c26bb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2370,
+/**/
     2369,
 /**/
     2368,