patch 8.1.1962: leaking memory when using tagfunc()

Problem:    Leaking memory when using tagfunc().
Solution:   Free the user_data. (Dominique Pelle, closes #4886)
diff --git a/src/version.c b/src/version.c
index 6b30e7c..7fd13b8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1962,
+/**/
     1961,
 /**/
     1960,