转载：使用其他工具进行svn diff
使用vimdiff作为svn diff的默认工具：http://www.blogjava.net/stone2083/archive/2011/05/24/350917.html

使用meld: http://www.commandlinefu.com/commands/view/5231/send-your-svn-diff-to-meld，　即
svn diff --diff-cmd='meld' -rHEAD:486