patch 8.2.3850: illegal memory access when displaying a partial

Problem:    Illegal memory access when displaying a partial.
Solution:   Terminate the string with a NUL. (closes #9371)
diff --git a/src/version.c b/src/version.c
index 372b760..5272a5b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3850,
+/**/
     3849,
 /**/
     3848,