fix junit.xml start_time properties

fix_junit_timestamps

import os
import time
import xmltodict

files = os.listdir('.')
for fi in files:
    if fi == 'new':
        continue
    with open(fi, 'r') as f:
        foo = xmltodict.parse(f.read())
        t = foo['testsuites']['testsuite']['@timestamp']
        to = time.strptime(t.split('.')[0]+'_+0200', '%Y-%m-%dT%H:%M:%S_%z')
        epoch = time.mktime(to) - 7200
        to = time.gmtime(epoch)        
        tn = f'{to.tm_year}-{to.tm_mon}-{to.tm_mday}T{to.tm_hour-2}:{to.tm_min}:{to.tm_sec}'
        foo['testsuites']['testsuite'].update({'properties': [{'property': {'@name': 'start_time', '@value': tn}}]})
        with open(f'new/{fi}', 'w') as g:
            g.write(xmltodict.unparse(foo))