"Nicks identity has been confirmed" no longer includes any non-alphanumeric characters.

[Anna Bakker]

If Nick was something like Nick-1234 it would say "Nick1234s identity is unknown" instead of "Nick-1234's identity is unknown". Note: there should be / used to be a ' after the nick and before the s.

[Riot]

This seems to be an issue with the "savetolog" console command which I believe is provided by exec. New issue posted here: http://code.minecraftonline.com/exec/issue/18/savetolog-command-strips-non-alphanumeric