fix typo in comment
fix typo in comment

ninemoreminutes/pycurl,m13253/pycurl-python3,ninemoreminutes/pycurl,m13253/pycurl-python3,ninemoreminutes/pycurl,jcharum/pycurl,jcharum/pycurl,ninemoreminutes/pycurl,jcharum/pycurl,m13253/pycurl-python3