Fix fb infer complain

Author: beldmit

gostsum.c

@@ -163,6 +163,7 @@ int hash_file(gost_hash_ctx * ctx, char *filename, char *sum, int mode)
     }
     if (!hash_stream(ctx, fd, sum)) {
         perror(filename);
+        close(fd);
         return 0;
     }
     close(fd);