There is a new pull request by Ophidiophobia against master on the void-packages repository

https://github.com/Ophidiophobia/void-packages grub
https://github.com/void-linux/void-packages/pull/31795

grub: compile with -Os
Avoids being stuck at "GRUB loading." when booting through legacy BIOS

I built and configured the image of a new VM and when starting that image with qemu I was stuck very early with "GRUB loading.". Somebody on IRC was having the same problem and provided links which said it was because of how grub is compiled. (see changed template for sources)
I have created the VM image multiple times with and without the change and it always failed without the change and always succeeded with the change.

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [x] I generally don't use the affected packages but briefly tested this PR

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#### Does it build and run successfully? 
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- [x] I built this PR locally for my native architecture, (ARCH-LIBC)
- [ ] I built this PR locally for these architectures (if supported. mark crossbuilds):
  - [ ] aarch64-musl
  - [ ] armv7l
  - [ ] armv6l-musl


A patch file from https://github.com/void-linux/void-packages/pull/31795.patch is attached