Remove comparism

[ichux]

django-sql-sniffer/django_sql_sniffer/injector.py

Line 33 in 53c2973

if res.stderr != b"":

This can be left as:

if res.stderr:
        logger.error(f"injected command resulted in error:\n{res.stderr}")

Sample

>>> bool(b"") == False
True
>>> bool(b"1") == True
True