awesome : inutile d'ajouter le tooltip en boucle

public/config-awesome-4-rc.lua

@@ -230,7 +230,7 @@ local iostat_tooltiptext = ""
 -- Widget de monitoring de l'activité des disques https://awesomewm.org/recipes/watch/
 -- disk I/O using iostat from sysstat utilities
 local iotable = {}
-local iostat = awful.widget.watch("iostat -dm -y -z 1 1", 2, -- in Kb, use -dm for Mb
+local iostat = awful.widget.watch("iostat -dm -y 1 1", 2, -- in Kb, use -dm for Mb
     function(widget, stdout)
         for line in stdout:match("(sd.*)\n"):gmatch("(.-)\n") do
             local device, tps, read_s, wrtn_s, read, wrtn =
@@ -248,17 +248,17 @@ local iostat = awful.widget.watch("iostat -dm -y -z 1 1", 2, -- in Kb, use -dm f
         -- customize here
         --widget:set_text("sda: "..iotable["sda"][2].."/"..iotable["sda"][3]) -- read_s/wrtn_s
         widget:set_text("iostat")
+    end
+)
 
-        widget_t = awful.tooltip({
+iostat_t = awful.tooltip({
  --objects = {  },
  timer_function = function()
          return iostat_tooltiptext
      end,
  })
 
-         widget_t:add_to_object(widget)
-    end
-)
+iostat_t:add_to_object(iostat)
 
 -- tris d'un tableau par la clef https://stackoverflow.com/questions/15706270/sort-a-table-in-lua
 function spairs(t, order)