Bug#871767: lintian: [checks/cruft] use substr instead of substring in example

[Chris Lamb]

tags 871767 + pending
thanks

Fixed in Git:

  
https://anonscm.debian.org/git/lintian/lintian.git/commit/?id=e1bb087d6449e6fd3a973efbea6bfae9778dc74d


Regards,

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