patch 8.0.1524: compiler warnings for uninitialized variables

Problem:    Compiler warnings for uninitialized variables. (Tony Mechelynck)
Solution:   Initialize variables.
diff --git a/src/version.c b/src/version.c
index 11c5133..78b8431 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1524,
+/**/
     1523,
 /**/
     1522,