patch 7.4.1565
Problem:    Crash when assert_equal() runs into a NULL string.
Solution:   Check for NULL. (Dominique) Add a test.
diff --git a/src/version.c b/src/version.c
index 3cab689..59c7714 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1565,
+/**/
     1564,
 /**/
     1563,