Fixed some security issues

AlexeyAB

2018-06-15 e1e5abe19197f2bb56a9d320b31275db4706aa4d

 src/captcha.c

@@ -28,7 +28,6 @@

void train_captcha(char *cfgfile, char *weightfile)
{
    data_seed = time(0);
    srand(time(0));
    float avg_loss = -1;
    char *base = basecfg(cfgfile);