fixed typo in phpdoc
fixed typo in phpdoc

Halleck45/PhpMetrics,Halleck45/PhpMetrics,phpmetrics/PhpMetrics,fonsecas72/PhpMetrics,UFOMelkor/PhpMetrics,phpmetrics/PhpMetrics,fonsecas72/PhpMetrics,NicolasMugnier/PhpMetrics,umair-gujjar/PhpMetrics,shaunl/PhpMetrics,UFOMelkor/PhpMetrics,phpmetrics/PhpMetrics,umair-gujjar/PhpMetrics,meadsteve/PhpMetrics,NicolasMugnier/PhpMetrics,UFOMelkor/PhpMetrics,igrybkov/PhpMetrics,hacfi/PhpMetrics,shaunl/PhpMetrics,igrybkov/PhpMetrics