in *wt_config_check(), there are calls to strncmp, looking for the "type", "min", "max", "choices" and so on strings. It looks to me like this code depends on non-overlapping names, that is, as long as there's "min" but not "minx", it all works. If I'm right, we might want to change *wt_config_check's strncmp calls to be WT_STRING_MATCH, just out of sheer, raving paranoia.