bugfix in function channelmod_modify_cmd

In "random_channel.c" there is a typo in the function channelmod_modify_cmd , it should be "int s = sscanf(buff, "%i %ms %ms \n", &cd_id, &param, &value);" instead of "int s = sscanf(buff, "%*s %*s %i %ms %ms \n", &cd_id, &param, &value);.