Update IkiWiki::openiduser to work with Net::OpenID 2.x

openiduser previously used a constructor that no longer works in 2.x.
However, all we actually want is the (undocumented) DisplayOfURL function
that is invoked by the display method, so try to use that.
(cherry picked from commit c3dd0ff5c7c10743107f203a5b456fdcd1b171df)

IkiWiki/Plugin/openid.pm

@@ -189,8 +189,18 @@ sub openiduser ($) {
 
 	if ($user =~ m!^https?://! &&
 	    eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
-		my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
-		my $display=$oid->display;
+		my $display;
+
+		if (Net::OpenID::VerifiedIdentity->can("DisplayOfURL")) {
+			# this works in at least 2.x
+			$display = Net::OpenID::VerifiedIdentity::DisplayOfURL($user);
+		}
+		else {
+			# this only works in 1.x
+			my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
+			$display=$oid->display;
+		}
+
 		# Convert "user.somehost.com" to "user [somehost.com]"
 		# (also "user.somehost.co.uk")
 		if ($display !~ /\[/) {

debian/changelog

@@ -2,6 +2,8 @@ ikiwiki (3.1415) UNRELEASED; urgency=low
 
   * img: Fix extra double quote with alt text. (smcv)
   * Updated French debconf templates translation. Closes: #535103
+  * openid: Support Net::OpenID 2.x when pretty-printing
+    openids. (smcv)
 
  -- Joey Hess <joeyh@debian.org>  Tue, 16 Jun 2009 15:08:31 -0400