update-grub2-error

update-grub2
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.0.0-20-generic
Found initrd image: /boot/initrd.img-3.0.0-20-generic
Found linux image: /boot/vmlinuz-3.0.0-19-generic
Found initrd image: /boot/initrd.img-3.0.0-19-generic
Found linux image: /boot/vmlinuz-3.0.0-17-generic
Found initrd image: /boot/initrd.img-3.0.0-17-generic
Found linux image: /boot/vmlinuz-3.0.0-16-generic
Found initrd image: /boot/initrd.img-3.0.0-16-generic
Found memtest86+ image: /boot/memtest86+.bin
error: syntax error.
error: Incorrect command.
error: syntax error.
error: line no: 98
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* files or please file a bug report with
/boot/grub/grub.cfg.new file attached.
done