Update classes/Peyote/Trait.php

In some server i found the following error, because evaluates reserved word Trait as T_TRAIT

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<b>Parse error</b>:  syntax error, unexpected 'Trait' (T_TRAIT), expecting identifier (T_STRING) in <b>/homepages/20/d392953578/htdocs/sub-admin/bin-debug/Amfphp/vendor/davewid/peyote/classes/Peyote/Join.php</b> on line <b>11</b><br />