</guid>
<pubDate>
<xsl:variable name="timestamp" select=".//abbr[@data-shorten]/@data-utime"/>
- <xsl:value-of select="php:functionString('Tweeper::epochToRssDate', number($timestamp))"/>
+ <xsl:value-of select="php:functionString('Tweeper::epochToRssDate', $timestamp)"/>
</pubDate>
<description>