Since thew upgrade to Mavericks the output from the subversion log command in TextMate has not worked correctly. It seems that the problem is caused by a change to the xml output from subversion which the TextMate format log script is not picking up.
Essentially the problem is the encoding line has changed from utf-8 to UTF-8.
To fix the problem edit the file: /Applications/TextMate.app/Contents/SharedSupport/Bundles/Subversion.tmbundle/Support/format_log_xml.rb To edit in TextMate this would be:
Change line 151 from:
if line =~ /^(.*)<\?xml version="1\.0"( encoding="utf-8")?\?>$/
if line =~ /^(.*)<\?xml version="1\.0"((?i) encoding="utf-8")?\?>$/
The log format should be back.