Remove trailing slash in URL
Remove trailing slash in URL

Trailing slash in GitHub URLs is not needed, and for consistency with
PHPMailer logo which does not have the trailing slash

iFixit/PHPMailer,pingyen/PHPMailer,markot84/PHPMailer,tbrown0139/PHPMailer,serakkkk/PHPMailer,BgR8/PHPMailer,tbrown0139/PHPMailer,serakkkk/PHPMailer,Oiro/PHPMailer,pingyen/PHPMailer,bertpoort/PHPMailer,mediware/PHPMailer-1,Nibbels/PHPMailer,cnhanyi/PHPMailer,sherryl4george/PHPMailer,BgR8/PHPMailer,Oiro/PHPMailer,mediware/PHPMailer-1,JesusTheHun/PHPMailer,bertpoort/PHPMailer,huang53798584/PHPMailer,Synchro/PHPMailer,hayageek/PHPMailer,namepros/PHPMailer,martinvd/PHPMailer,martinvd/PHPMailer,javedmehr/PHPMailer,ravisorg/PHPMailer,hayageek/PHPMailer,gn0st1k4m/PHPMailer,PYuen1029/PHPMailer,nawawi/PHPMailer,cnhanyi/PHPMailer,sherryl4george/PHPMailer,gn0st1k4m/PHPMailer,Dyonigi/PHPMailer,michield/PHPMailer,PHPMailer/PHPMailer,Dubz/PHPMailer,iFixit/PHPMailer,Dubz/PHPMailer,michield/PHPMailer,ravisorg/PHPMailer,Synchro/PHPMailer,Dyonigi/PHPMailer,huang53798584/PHPMailer,javedmehr/PHPMailer,nawawi/PHPMailer,PYuen1029/PHPMailer,JesusTheHun/PHPMailer,jimjag/PHPMailer,jimjag/PHPMailer,namepros/PHPMailer,PunchyRascal/PHPMailer,Nibbels/PHPMailer,markot84/PHPMailer,PHPMailer/PHPMailer,PunchyRascal/PHPMailer