os-prober invalidates part of the menu management

[Arbiel (gmx)]

Hi

The variable "GRUB_HIDDEN_TIMEOUT" allows for the hiding of the menu for
a given number of seconds, during which the user can strike either
"Escape" or "Shift" to dismiss this hidding and have the menu displayed.

The user may wish this period to be 0 second, in which case they have to
keep one of those two keys down at the very start of the bios (uefi)
process to have the menu displayed.

This is great.

Unfortunately, 30_os-prober generates the following code
---------------------------
set timeout_style=menu
 if [ "${timeout}" = 0 ]; then
  set timeout=10
 fi
---------------------------

What is the purpose of this code, and shouldn't it be suppressed ?

Arbiel

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