sshrepo: don't try to validate when creating the repo - This removes the "repo not found" error when cloning or init-ing a remote repo. - Since the remote hg will abort if the repo already exists we don't need to validate it.

<item>
    <title>#tag|escape#</title>
    <link>#url#?cs=#node|short#</link>
    <description><![CDATA[#tag|strip|escape|addbreaks#]]></description>
    <pubDate>#date|rfc822date#</pubDate>
</item>