Question with printk warnings in ip_conntrack with 2.4.20.

Nov 29 03:29:26 lucidpixels kernel: ip_conntrack: max number of expected connections 1 of ftp reached for 192.168.xxx.xxx->129.128.5.191, reusing
Nov 29 03:29:30 lucidpixels kernel: ip_conntrack: max number of expected connections 1 of ftp reached for 192.168.xxx.xxx->129.132.7.170, reusing
Nov 29 03:29:36 lucidpixels kernel: ip_conntrack: max number of expected connections 1 of ftp reached for 192.168.xxx.xxx->195.113.31.123, reusing

These fill up my logs (kern.info) which I use for logging iptables blocked packets.
Is there anyway to turn this feature off dynamically or should one just comment out line #970 in /usr/src/linux/net/ipv4/netfilter/ip_conntrack_core.c ?

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