[HOWTO] edit: obsolete workaround to a problem with grub-btrfs

[pebcak]

@LamnaNasus

jan. 03 15:21:56 endeavouros grub-btrfsd[2102]: [!] inotifywait was not found, exiting. Is inotify-tools inst>

Install inotify-tools and try restarting the daemon.