Get rid of bogus characters in UTF-8 encoding file

fix_encoding.py

#!/usr/bin/env python3

import io
import os, sys

os.rename(sys.argv[1],'tempfile.sql')

saida = open(sys.argv[1], "w")

with io.open("tempfile.sql", encoding="utf-8", errors='ignore') as f:
    for line in f:
        saida.write(line)

saida.close()
os.remove("tempfile.sql")