Hello,  been getting event log messages like this for a
week now.  Normally, I'm sure you know, they just
say "End Verify of 'D:'.  Now they've added extra
characters.  I have really no clue what is going on.  The
log files don't seem any different than before.

More examples:

End Verify of 'C:' '\'  Consult the backup report for
more detail.  

End Verify of 'C:' '
'  Consult the backup report for
more detail.  

End Verify of 'D:' '(null)'  Consult the backup report
for more detail.  

End Verify of 'D:' '榐¹䐀¼Ὸ¸Ὸ¸ƘŸƘŸ¹¹柰¹柰
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