patch 8.2.1169: write NUL past allocated space using corrupted spell file

Problem:    Write NUL past allocated space using corrupted spell file.
            (Markus Vervier)
Solution:   Init "c" every time.

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1169,
 /**/
     1168,
 /**/