The package "sys-boot/grub:2" popped this warning during updates :
> Problems with installed bash completions were found: > > grub: 'have' command is deprecated and must not be used. > grub: incorrect name, no completions for 'grub' command defined. > grub-mkconfig: missing alias (symlink) for completed command. > grub-mkpasswd-pbkdf2: missing alias (symlink) for completed command. > grub-mkrescue: missing alias (symlink) for completed command. > grub-reboot: missing alias (symlink) for completed command. > grub-editenv: missing alias (symlink) for completed command. > grub-set-default: missing alias (symlink) for completed command. > grub-mkimage: missing alias (symlink) for completed command. > grub-sparc64-setup: missing alias (symlink) for completed command. > grub-bios-setup: missing alias (symlink) for completed command. > grub-script-check: missing alias (symlink) for completed command. > grub-probe: missing alias (symlink) for completed command. > grub-mkfont: missing alias (symlink) for completed command. > grub-install: missing alias (symlink) for completed command. No "grub" entries found at all in "/usr/share/bash-completions". Is it correct to assume any "bash-completions" are strictly personal choice and NOT technically required?