Fix a bug that caused unclosed single quotes in the crontab to raise a ValueError
Fix a bug that caused unclosed single quotes in the crontab to raise a ValueError

joshblum/django-kronos,jeanbaptistelab/django-kronos,jgorset/django-kronos,jeanbaptistelab/django-kronos,joshblum/django-kronos,jgorset/django-kronos