updated for version 7.3.1177
Problem:    Wasting memory on padding.
Solution:   Reorder struct fields. (Dominique Pelle)
diff --git a/src/structs.h b/src/structs.h
index 4f38ad9..bfe1919 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1180,12 +1180,12 @@
  */
 struct dictvar_S
 {
-    int		dv_refcount;	/* reference count */
-    hashtab_T	dv_hashtab;	/* hashtab that refers to the items */
-    int		dv_copyID;	/* ID used by deepcopy() */
-    dict_T	*dv_copydict;	/* copied dict used by deepcopy() */
     char	dv_lock;	/* zero, VAR_LOCKED, VAR_FIXED */
     char	dv_scope;	/* zero, VAR_SCOPE, VAR_DEF_SCOPE */
+    int		dv_refcount;	/* reference count */
+    int		dv_copyID;	/* ID used by deepcopy() */
+    hashtab_T	dv_hashtab;	/* hashtab that refers to the items */
+    dict_T	*dv_copydict;	/* copied dict used by deepcopy() */
     dict_T	*dv_used_next;	/* next dict in used dicts list */
     dict_T	*dv_used_prev;	/* previous dict in used dicts list */
 };