is max-ixfr-log-size implemented in bind 8.2.2-p5

[lmallesh at in.ibm.com]

Hi
I would like to know whether the field max-ixfr-log-size in named.conf is
implemented in bind 8.2.2-p5 or not. If it is implemented what is the int
variable in the field represents ( kb,gb etc.).

Thanks in advance
Mallesh