bug in dmesg parameter parsing (busybox 1.2.0)

[Natanael Copa]

Hi,

I'm upgrading my 1.1.3 busybox to 1.2.0. 

I got bitten by this one:

~ $ dmesg -c
dmesg: option requires an argument -- c
BusyBox v1.2.0 (2006.07.06-06:53+0000) multi-call binary

Usage: dmesg [-c] [-n LEVEL] [-s SIZE]

Prints or controls the kernel ring buffer

Options:
        -c              Clears the ring buffer's contents after printing
        -n LEVEL        Sets console logging level
        -s SIZE         Use a buffer of size SIZE

~ $ dmesg -n 1
BusyBox v1.2.0 (2006.07.06-06:53+0000) multi-call binary

Usage: dmesg [-c] [-n LEVEL] [-s SIZE]

Prints or controls the kernel ring buffer

Options:
        -c              Clears the ring buffer's contents after printing
        -n LEVEL        Sets console logging level
        -s SIZE         Use a buffer of size SIZE

~ $ dmesg -s 16384
BusyBox v1.2.0 (2006.07.06-06:53+0000) multi-call binary

Usage: dmesg [-c] [-n LEVEL] [-s SIZE]

Prints or controls the kernel ring buffer

Options:
        -c              Clears the ring buffer's contents after printing
        -n LEVEL        Sets console logging level
        -s SIZE         Use a buffer of size SIZE