hgweb templates: Don't word wrap "foo bar ago" (e.g. "3 months\nago")
This made log entries or hgwebdir index look ugly with certain browser widths.
<item>
<title>#desc|strip|firstline|strip|escape#</title>
<link>#url#?cs=#node|short#</link>
<description><![CDATA[#desc|strip|escape|addbreaks#]]></description>
<author>#author|obfuscate#</author>
<pubDate>#date|rfc822date#</pubDate>
</item>