--randomize flag error

hi,

im a newbie in distcc and i created a test to figure out the best numbers
to run distcc on my cluster.
i used the following:
1) DISTCC_HOSTS="--randomize server1/11 server2/11 .... server9/11"
2) 9 servers. each of them has 8 cpus and 11 disccd jobs
3) make -j 99 -l 9 (my server also has 8 cpus)
4) my makefile compiles 2000 c++ files(same source file)
4)distcc version:distcc 3.2rc1 x86_64-redhat-linux-gnu
  (protocols 1, 2 and 3) (default port 3632)
  built Oct 26 2012 12:33:34

the compilation seems really fast and distcc compiles in all servers :).
but some times i get in stdout the line:
distcc[11686] (dcc_connect_by_name) ERROR: failed to look up host
""--randomize": Unknown host
compiling on local host.....

am i using the --randomize flag in a wrong way or is it some kind of a bug?

thanks,
tal

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