fsoids script fails reporting the shortened tid description on Python 3

[ale-rt]

fsoids script fails reporting the shortened tid description on Python 3

What I did:

I ran the fsoids script passing one oid:

$ ./bin/fsoids components/zeo/var/filestorage/Data.fs 18104

What I expect to happen:

I expected this output:

$ ./bin/fsoids components/zeo/var/filestorage/Data.fs 18104
oid 0x46b8 ZODB.blob.Blob 2 revisions
    tid 0x03e1ec746d9d5a77 offset=32500086 2021-08-06 13:40:25.690936
        tid user=b' ale'
        tid description=b'/Plone/workspaces/open ... 787f6b6dfe6f.jpeg/index_html'
        new revision ZODB.blob.Blob at 32501238
        new revision ZODB.blob.Blob at 32501305
        referenced by 0x46b7 plone.namedfile.file.NamedBlobImage at 32500855

What actually happened:

oid 0x46b8 ZODB.blob.Blob 2 revisions
    tid 0x03e1ec746d9d5a77 offset=32500086 2021-08-06 13:40:25.690936
        tid user=b' ale'
Traceback (most recent call last):
  File "./bin/fsoids", line 319, in <module>
    sys.exit(ZODB.scripts.fsoids.main())
  File "/home/ale/.buildout/eggs/ZODB-5.6.0-py3.8.egg/ZODB/scripts/fsoids.py", line 76, in main
    c.report()
  File "/home/ale/.buildout/eggs/ZODB-5.6.0-py3.8.egg/ZODB/FileStorage/fsoids.py", line 120, in report
    print("        tid description=%r" % shorten(description))
  File "/home/ale/.buildout/eggs/ZODB-5.6.0-py3.8.egg/ZODB/FileStorage/fsoids.py", line 32, in shorten
    return s[:nleading] + " ... " + s[-ntrailing:]
TypeError: can't concat str to bytes

What version of Python and Zope/Addons I am using:

• Python 3.8
• ZODB-5.6.0
• Zope-4.6.3
• Plone-5.2.5