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

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index ff5daa7901d9976dc35e1b4a05e1cf0140297d6a..24b31582afbc78415a5ce34acf06e0d589be0f91 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -695,10 +695,9 @@ sub validate_refname {
 # in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
 sub to_utf8 {
        my $str = shift;
-       my $res;
-       eval { $res = decode_utf8($str, Encode::FB_CROAK); };
-       if (defined $res) {
-               return $res;
+       if (utf8::valid($str)) {
+               utf8::decode($str);
+               return $str;
        } else {
                return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
        }