"svn log --xml --use-merge-history ..." doesn't include --use-merge-history in the xml output?

Is it just me or is svn log's "--xml" switch not including "--use-merge-history" information?

The text output of "svn log --use-merge-history" includes the "Merged via: r3673" information:
    ------------------------------------------------------------------------
    r3584 | bob | 2013-04-16 15:50:48 -0400 (Tue, 16 Apr 2013) | 1 line
    Merged via: r3673
    
    Fixed flux capacitor
    ------------------------------------------------------------------------

whereas "svn log --xml --use-merge-history" provides no "Merged via: ..." information:
    <logentry
       revision="3584">
    <author>bob </author>
    <date>2013-04-16T19:50:48.762112Z</date>
    <paths>
    <path
       kind="file"
       action="M">/project/branches/1.1/source/foo.jcl</path>
    </paths>
    <msg>Fixed flux capacitor</msg>
    </logentry>

This is with the svn CLI client, version 1.7.9 (r1462340)
Received on 2013-05-01 22:25:11 CEST