patch 9.1.1313: compile warning about uninitialized value

Problem:  compile warning about uninitialized value
          (Tony Mechelynck, after v9.1.1311)
Solution: initialize variable on declaration

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1313,
 /**/
     1312,
 /**/