doc: Uncomment the wallpaper `screen` property.

tests/examples/awful/wallpaper/add_screen1.lua

@@ -11,7 +11,7 @@ screen._add_screen {x = 322, y = 0, width = 160, height = 96}
 require("_default_look")
 
        awful.wallpaper {
-           screen = screen[1], --DOC_HIDE
+           screen = screen[1],
            bg     = "#222222",
            widget = wibox.widget {
                 {

tests/examples/awful/wallpaper/add_screen2.lua

@@ -11,7 +11,7 @@ screen._add_screen {x = 322, y = 0, width = 160, height = 96}
 require("_default_look")
 
        local wall = awful.wallpaper {
-           screen = screen[1], --DOC_HIDE
+           screen = screen[1],
            bg     = "#222222",
            widget = wibox.widget {
                 {

tests/examples/awful/wallpaper/add_screen3.lua

@@ -12,7 +12,7 @@ screen._add_screen {x = 322, y = 0, width = 160, height = 96}
 require("_default_look")
 
        local wall = awful.wallpaper {
-           screen = screen[1], --DOC_HIDE
+           screen = screen[1],
            bg     = "#222222",
            widget = wibox.widget {
                 {

tests/examples/awful/wallpaper/corner1.lua

@@ -7,10 +7,10 @@ local wibox = require("wibox") --DOC_HIDE
 local beautiful = require("beautiful") --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
-
+local s = screen[1] --DOC_HIDE
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = "#000000",
        widget = {
            {

tests/examples/awful/wallpaper/gradient1.lua

@@ -2,10 +2,11 @@
 local awful =  { wallpaper = require("awful.wallpaper") } --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
+local s = screen[1] --DOC_HIDE
 
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = {
            type  = "linear" ,
            from  = { 0, 0  },

tests/examples/awful/wallpaper/gradient2.lua

@@ -2,10 +2,11 @@
 local awful =  { wallpaper = require("awful.wallpaper") } --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
+local s = screen[1] --DOC_HIDE
 
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = {
            type = "radial",
            from  = { 160, 98, 20  },

tests/examples/awful/wallpaper/mazimized1.lua

@@ -2,10 +2,11 @@
 local awful =  { wallpaper = require("awful.wallpaper") } --DOC_HIDE
 local wibox = require("wibox") --DOC_HIDE
 local beautiful = require("beautiful") --DOC_HIDE
+local s = screen[1] --DOC_HIDE
 
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        widget = {
            {
                image  = beautiful.wallpaper,

tests/examples/awful/wallpaper/mazimized2.lua

@@ -4,10 +4,11 @@ local wibox = require("wibox") --DOC_HIDE
 local beautiful = require("beautiful") --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
+local s = screen[1] --DOC_HIDE
 
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = "#0000ff",
        widget = {
            {

tests/examples/awful/wallpaper/mazimized3.lua

@@ -4,10 +4,10 @@ local wibox = require("wibox") --DOC_HIDE
 local beautiful = require("beautiful") --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
-
+local s = screen[1] --DOC_HIDE
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        widget = {
             horizontal_fit_policy = "fit",
             vertical_fit_policy   = "fit",

tests/examples/awful/wallpaper/tiled1.lua

@@ -4,10 +4,10 @@ local wibox = require("wibox") --DOC_HIDE
 local beautiful = require("beautiful") --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
-
+local s = screen[1] --DOC_HIDE
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = "#0000ff",
        widget = {
            {

tests/examples/awful/wallpaper/tiled2.lua

@@ -4,10 +4,10 @@ local wibox = require("wibox") --DOC_HIDE
 local gears = { shape = require("gears.shape") } --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
-
+local s = screen[1] --DOC_HIDE
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        bg     = "#0000ff",
        widget = {
            {

tests/examples/awful/wallpaper/widget1.lua

@@ -4,10 +4,10 @@ local wibox = require("wibox") --DOC_HIDE
 local gears = {color = require("gears.color") } --DOC_HIDE
 
 screen[1]._resize {x = 0, y = 0, width = 320, height = 196} --DOC_HIDE
-
+local s = screen[1] --DOC_HIDE
 
    awful.wallpaper {
-       screen = screen[1], --DOC_HIDE
+       screen = s,
        widget = wibox.widget {
             fit = function(_, width, height)
                 return width, height