Updating grubby and kernel package rewrites 'grub.conf' incorrectly

Issue

• Updating grubby and kernel package rewrites 'grub.conf' file incorrectly.
• After the update /boot/grub/grub.conf is the following:

default=0
timeout=5
serial --unit=0 --speed=57600
terminal --timeout=5 serial console
title Red Hat Enterprise Linux (2.6.32-358.el6.x86_64)
        root (hd0,0)
        kernel /boot/tboot.gz logging=vga,serial,memory
        module /boot/vmlinuz-2.6.32-358.el6.x86_64 ro root=UUID=d99d02c6-27d6-4c5e-a1d1-1e1a1a1a1a1a intel_iommu=on
 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto console=ttyS0,57600 
 KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM processor.max_cstate=0 intel_idle.max_cstate=0 biosdevname=1
        module /boot/initramfs-2.6.32-358.el6.x86_64.img