bug280 is ambiguous. Use github prefix instead.
Merge pull request #326 from bantu/phpunit-group-source-prefix

bug280 is ambiguous. Use github prefix instead.

* bantu/phpunit-group-source-prefix:
  bug280 is ambiguous. Use github prefix instead.
Merge branch 'master' into php5

* master:
  bug280 is ambiguous. Use github prefix instead.