mercurial/templates/rss/changelogentry.tmpl

merge: check argument value with if/raise instead of an assert

This shouldn't make any difference for legal code, but it'll prevent
the assertion from being optimized out if someone decides to do -O on
our code.

Differential Revision: https://phab.mercurial-scm.org/D6879

<item>
    <title>{inbranch%"{if(name, '[{name|escape}] ')}"}{branches%"{if(name, '[{name|escape}] ')}"}{desc|strip|firstline|strip|escape}</title>
    <guid isPermaLink="true">{urlbase}{url|urlescape}rev/{node|short}</guid>
    <link>{urlbase}{url|urlescape}rev/{node|short}</link>
    <description>
    <![CDATA[
        <table>
            <tr>
                <th style="text-align:left;">changeset</th>
                <td>{node|short}</td>
            </tr>
            <tr>
                <th style="text-align:left;">branch</th>
                <td>{inbranch%"{name|escape}"}{branches%"{name|escape}"}</td>
            </tr>
            <tr>
                <th style="text-align:left;">bookmark</th>
                <td>{bookmarks%"{name|escape}"}</td>
            </tr>
            <tr>
                <th style="text-align:left;">tag</th>
                <td>{tags%"{name|escape}"}</td>
            </tr>
            <tr>
                <th style="text-align:left;vertical-align:top;">user</th>
                <td>{author|obfuscate}</td>
            </tr>
            <tr>
                <th style="text-align:left;vertical-align:top;">description</th>
                <td>{desc|strip|escape|websub|addbreaks|nonempty}</td>
            </tr>
            <tr>
                <th style="text-align:left;vertical-align:top;">files</th>
                <td>{files}</td>
            </tr>
        </table>
    ]]>
    </description>
    <author>{author|obfuscate}</author>
    <pubDate>{date|rfc822date}</pubDate>
</item>