* util/grub-mkstandalone.in: Fix help messages. Gettextize.

	* util/grub-mkstandalone.in: Fix help messages. Gettextize.
	* util/grub-install.in: Gettextize.
	* util/grub-mkconfig.in: Likewise.
	* util/grub-mkconfig_lib.in: Replace gettext with echo -n and not echo
	if not available.
	(grub_warn): Gettextize.
	* util/grub-mknetdir.in: Gettextize.
	* util/grub-mkrescue.in: Likewise.
	* util/grub-mkstandalone.in: Likewise.
	* util/grub-reboot.in: Likewise.
	* util/grub-set-default.in: Likewise.
	* util/grub.d/00_header.in: Likewise.
	* util/grub.d/10_hurd.in: Likewise.
	* util/grub.d/10_kfreebsd.in: Likewise.
	* util/grub.d/10_linux.in: Likewise.
	* util/grub.d/10_netbsd.in: Likewise.
	* util/grub.d/10_windows.in: Likewise.
	* util/grub.d/20_linux_xen.in: Likewise.
	* util/grub.d/30_os-prober.in: Likewise.
	* po/POTFILES-shell.in: Regenerate.