r6881 implies that a ^/clients directory existed until r6880: https://svn.apache.org/viewvc/subversion/README?r1=846955&r2=846954&pathrev=846955&diff_format=f
kfogel on IRC recalls it having existed. However, the ASF repository does not have a ^/subversion/clients tree anywhere in its history[1], and Bert's mirror of the svn.collab.net repository doesn't have an ^/clients tree either. So... Did a ^/clients directory exist? If yes, where is its history? Daniel [1] as determined by by "grep -ar subversion/clients db/revs/8[3456789][0-9]* | grep -Eav '/(trunk|tags|branches)/'".