Passing additional parameters to svn diff

Greetings, All!

Just ran into this non-trivial topic once again.

<stderr>:svn diff -x -b -I "\$Id.*?\$" --
svn: invalid option character: I
Type 'svn help' for usage.

However,
svn diff -x "-b -I \"\$Id.*?\$\"" --
works.

I think there could be easier way to pass additional parameters than quoting
(and incidentally escaping) them.
Like, everything from -x to -- passed to the external diff-cmd as-is (thus
making the -x switch the latest one before URL's/paths)

-- 
WBR,
 Andrey Repin (anrdaemon_at_freemail.ru) 08.04.2009, <18:48>
Sorry for my terrible english...
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