#40 Char handling

[Fabian Affolter]

pdfshuffler.py:1037:__init__:GError: The local file URI 'file:///tmp/tmpgBtSp8pdfshuffler/04_YSZ-COD-#2105681-XRD-pattern.pdf' may not include a '#'

Full traceback: https://bugzilla.redhat.com/show_bug.cgi?id=1281242