Limit match ! and and question (manpage error?)

[Pat Riehecky <prieheck@xxxxxxx>]

According to the manpage for iptables:

   limit
       This module matches at a limited rate using a token bucket
filter.   A rule  using  this  extension  will  match  until  this limit
is reached (unless the ‘!’ flag is used).  It can be used in combination
with  the LOG target to give limited logging, for example.

So why then do I get

# /sbin/iptables -t filter -A SYNFLOODCHECK -m limit --limit ! 151/s -j
DROP
iptables v1.3.5: limit does not support invert
Try `iptables -h' or 'iptables --help' for more information.

# /sbin/iptables -t filter -A SYNFLOODCHECK -m limit ! --limit 151/s -j
DROP
iptables v1.3.5: limit does not support invert
Try `iptables -h' or 'iptables --help' for more information.

Is the manpage wrong?  Am I supposed to put the ! some place else?  

Pat