svn log behaves strangely when characters cannot be represented in the local charset

When in a log message, some characters cannot be represented in the
charset specified by the current locale, all the non-ASCII characters
are silently converted in a strange format, e.g. I get:

  Test caract?\195?\168re non ISO-8859-1: ?\226?\134?\146

in ISO-8859-1 for the log message:

  Test caractère non ISO-8859-1: →

I don't think such a format is useful in practice. For this reason,
not outputing a warning to stderr (telling which revisions could not
be handled correctly) and not terminating with a non-zero exit status
is a bug, IMHO.

Tested with svn version 1.4.6 (r28521) under Debian/unstable.

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)
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