Fix creation of backup.
Fix creation of backup.

The "mkdir -p" call needs to be issued before doing
anything else.

jh23453/privacyidea,privacyidea/privacyidea,jalr/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,jalr/privacyidea,jh23453/privacyidea,jalr/privacyidea,jalr/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,jalr/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,jalr/privacyidea