Update attribution

src/docparts.cc

@@ -63,7 +63,7 @@ void CommandLineParserPrivate::outputAuthors(Outputter * o) const {
 	o->paragraph(
 		QString::fromUtf8(
 			"Written by Jakob Truelsen. "
-			"Patches by Patches by Mário Silva and Emmanuel Bouthenot."));
+			"Patches by Mário Silva, Benoit Garret and Emmanuel Bouthenot."));
 	o->endSection();
 }