patch 8.0.1824: Coverity warns for variable that may be uninitialized

Problem:    Coverity warns for variable that may be uninitialized.
Solution:   Initialize the variable.
diff --git a/src/version.c b/src/version.c
index 8af1a95..12a8073 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1824,
+/**/
     1823,
 /**/
     1822,