wibox.layout.align: Give middle widget full height

I amended some change to commit 8560de597c which made the align layout's
middle widget really centered instead of being way too wide. However, this also
shrunk the widget on the "other" axis, too. This commit fixes that up.

A big "sorry" to Lukáš for breaking his patch.

Signed-off-by: Uli Schlachter <psychon@znc.in>

lib/wibox/layout/align.lua.in

@@ -59,12 +59,12 @@ function align:draw(wibox, cr, width, height)
             w, h = width, size_limit - size_first - size_third
             local real_w, real_h = self.second:fit(w, h)
             x, y = 0, size_first + h / 2 - real_h / 2
-            w, h = real_w, real_h
+            h = real_h
         else
             w, h = size_limit - size_first - size_third, height
             local real_w, real_h = self.second:fit(w, h)
             x, y = size_first + w / 2 - real_w / 2, 0
-            w, h = real_w, real_h
+            w = real_w
         end
         base.draw_widget(wibox, cr, self.second, x, y, w, h)
     end