Fix typo in month name

youtube_dl/utils.py

@@ -1051,7 +1051,7 @@ def month_by_name(name):
     """ Return the number of a month by (locale-independently) English name """
 
     ENGLISH_NAMES = [
-        u'Januar', u'February', u'March', u'April', u'May', u'June',
+        u'January', u'February', u'March', u'April', u'May', u'June',
         u'July', u'August', u'September', u'October', u'November', u'December']
     try:
         return ENGLISH_NAMES.index(name) + 1