client: changing size hints does not arrange()

It just calls property hook.

Signed-off-by: Julien Danjou <julien@danjou.info>

client.c

@@ -1721,7 +1721,7 @@ luaA_client_newindex(lua_State *L)
         break;
       case A_TK_SIZE_HINTS_HONOR:
         c->size_hints_honor = luaA_checkboolean(L, 3);
-        client_need_arrange(c);
+        hooks_property(c, "size_hints_honor");
         break;
       case A_TK_BORDER_WIDTH:
         client_setborder(c, luaL_checknumber(L, 3));

lib/awful/layout/init.lua.in

@@ -82,5 +82,10 @@ function getname(layout)
 end
 
 hooks.arrange.register(on_arrange)
+hooks.property.register(function (c, prop)
+    if c:isvisible() and prop == "size_hints_honor" then
+        on_arrange(c.screen)
+    end
+end)
 
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