patch 8.2.1962: netbeans may access freed memory

Problem:    Netbeans may access freed memory.
Solution:   Check the buffer pointer is still valid.  Add a test. (Yegappan
            Lakshmanan, closes #7248)
diff --git a/src/version.c b/src/version.c
index 40599ce..6baaf59 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1962,
+/**/
     1961,
 /**/
     1960,