patch 8.2.3513: using freed memory when using a timer and searching

Problem:    Using freed memory when using a timer and searching. (Dominique
            Pellé)
Solution:   Allocated mr_pattern.
diff --git a/src/version.c b/src/version.c
index 691af12..d6b4c88 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3513,
+/**/
     3512,
 /**/
     3511,