patch 8.2.1620: searchcount() test fails

Problem:    searchcount() test fails.
Solution:   Restore default flag value.
diff --git a/src/version.c b/src/version.c
index 1208ce3..36416ef 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1620,
+/**/
     1619,
 /**/
     1618,