[Cake] Long-RTT broken again

[Toke Høiland-Jørgensen]

Sebastian Moeller <moeller0 at gmx.de> writes:

> 	Oh, shiny ;) I take it the parameter is limiting the queue
> 	memory as measured by skb->truesize ; just checked, it wants the
> 	size in KB. I just committed a change to report that in the
> 	usage help tc will display…

Changed this to use the existing functionality in tc to parse different
units of size (kbit, kbyte, etc), and default to bytes if no units
specified. Also added the parameter to the man page.

And for good measure I did a little bit of bikeshedding renamed the
parameter to 'memlimit' as well :)

-Toke