From fbf145ca3ff18985d0885ed939ee63123add9dbd Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@ http://smcv.pseudorandom.co.uk/>
Date: Thu, 11 Dec 2008 02:03:07 +0000
Subject: comments: avoid warning if there's no subject

---
 IkiWiki/Plugin/comments.pm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'IkiWiki/Plugin/comments.pm')

diff --git a/IkiWiki/Plugin/comments.pm b/IkiWiki/Plugin/comments.pm
index 6bd18a5cf..d1105b366 100644
--- a/IkiWiki/Plugin/comments.pm
+++ b/IkiWiki/Plugin/comments.pm
@@ -434,8 +434,10 @@ sub sessioncgi ($$) { #{{{
 	}
 
 	my $subject = $form->field('subject');
-	$subject =~ s/"/&quot;/g;
-	$content .= " subject=\"$subject\"\n";
+	if (length $subject) {
+		$subject =~ s/"/&quot;/g;
+		$content .= " subject=\"$subject\"\n";
+	}
 
 	$content .= " date=\"" . IkiWiki::formattime(time, '%X %x') . "\"\n";
 
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