who print these infomations?

Hello term，
    i reading the grub 0.9.3 source code.very doubt a question.
    what's function printed underside the summary in the grub program.
    i want to disable these information output.how to do?
>Booting 'CentOS-3 (2.4.21-37.EL)'
>root (hd0,0)
>Filesystem type is ext2fs, partition type 0x83
>kernel /boot/vmlinuz-2.4.21-37.EL ro root=LABEL=/ vga=791
>[Linux-bzImage, setup=0x1400, size=0x130701]
>initrd /boot/initrd-2.4.21-37.EL.img
>[Linux-initrd @ 0x1f7c8000, 0x27916 bytes]
  


System Infomations:
  Grub version=0.9.3
  OS=CentOS 3.6
  
Very sorry,i'm english is very poor.




                                                                                  2006-08-09
                                                                                  
Yuri Huang

MSN:laosi923@xxxxxxx
Mail:laosi923@xxxxxxx

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