patch 7.4.1679

Problem:    Coverity: copying value of v_lock without initializing it.
Solution:   Init v_lock in rettv_list_alloc() and rettv_dict_alloc().

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1679,
 /**/
     1678,
 /**/