patch 8.1.1339: installer needs to product name et al.

Problem:    Installer needs to product name et al.
Solution:   Add a few lines to the NSIS installer script. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index 91ea914..8496767 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1339,
+/**/
     1338,
 /**/
     1337,