mergeinfo clean

Hi,

Working with svn project for longer time causes growth of mergeinfo
property and very unreadable diffs between commits.
SVN with every commit updates mergeinfo value what is needed to keep
tracking merges, but sometimes updating this value is no longer needed
because merged branch no longer exists and i do not need to remember
about it.
I created a program that checks every mergeinfo property and if listed
path doesn't exists it is removed.
What do you think about this solution? Do you think it is safe?

greetings

-- 
Piotr Kabacinski
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