patch 7.4.1128

Problem:    MS-Windows: delete() does not recognize junctions.
Solution:   Add mch_isrealdir() for MS-Windows. Update mch_is_symbolic_link().
            (Ken Takata)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1128,
 /**/
     1127,
 /**/