Fix warnings generated by embeds.
Patch by kareila.
diffs (12 lines):
diff -r 18418924badc -r 20d68b781234 cgi-bin/LJ/EmbedModule.pm
--- a/cgi-bin/LJ/EmbedModule.pm Thu Dec 16 23:09:15 2010 +0800
+++ b/cgi-bin/LJ/EmbedModule.pm Thu Dec 16 23:20:44 2010 +0800
@@ -236,7 +236,7 @@ sub module_iframe_tag {
my $journalid = $u->userid;
$moduleid += 0;
- my $preview = $opts{preview};
+ my $preview = defined $opts{preview} ? $opts{preview} : '';
# parse the contents of the module and try to come up with a guess at the
width and height of the content
my $content = $class->module_content( moduleid => $moduleid, journalid =>
$journalid, preview => $preview );
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