dnsmasq: maximum cache size is hardcoded to 10000

Most people won't run into this problem, but if you use a very large hosts-file (like this one here: http://someonewhocares.org/hosts/) you might fill up the cache completely. No matter what you set for cache-size, the maximum number is hardcoded in the file option.c of the dnsmasq sources.

As there is no warning, you might end up wondering: why the hell is dnsmasq not caching anything?

Using 10000 as a default value in the config file surely is a sane choice, but higher values should be possible (I'm using 20000 now and the moon is still up in the night sky). Or at least there should be a comment in the config to indicate that 10000 is a hard limit.

My question: should I file this as a bug?