Fixed of using backslash (\) in paths to cfg for training

src/utils.c

@@ -126,6 +126,7 @@ char *basecfg(char *cfgfile)
     {
         c = next+1;
     }
+	if(!next) while ((next = strchr(c, '\\'))) { c = next + 1; }
     c = copy_string(c);
     next = strchr(c, '.');
     if (next) *next = 0;