413 Request Entity Too Large

Hiya!

I'm getting this error, when doing a "svn update" in a large
directory.

svn: REPORT request failed on '/ukparse/svn/!svn/vcc/default' 
svn: REPORT of '/ukparse/svn/!svn/vcc/default': 413 Request Entity Too
Large (https://project.knowledgeforge.net) 

Not sure, but https://issues.apache.org/bugzilla/show_bug.cgi?id=39154
implies it might be an Apache config error on KnowledgeForge. Do you
have your SSLVerifyClient line in the wrong place?

Any other ideas?

Francis