gitweb: use Perl built-in utf8 function for UTF-8 decoding.
gitweb: use Perl built-in utf8 function for UTF-8 decoding.

Signed-off-by: İsmail Dönmez <e327c9fb8e9480674a8de694371211e799d7292d@pardus.org.tr>
Tested-by: Martin Koegler <ea56f0187842ce0af18f0283b5f003697482ffdd@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git