svnlook help is incomplete

"svnlook help changed" outputs:

changed: usage: svnlook changed REPOS_PATH

Print the paths that were changed.

Valid options:
  -r [--revision] arg : specify revision number ARG
  -t [--transaction] arg : specify transaction name ARG

But it doesn't say how the paths are printed. What is the exact
format? I think that "svnlook help changed" should say more.

Also, how are special characters encoded? In particular, what happens
when some filename contains the \n character? Of course, no-one would
normally use such a character in a filename, but I wonder about
security holes in hook scripts using svnlook.

-- 
Vincent Lefèvre <vincent_at_vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA
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