As it is in summary. exo-0.3.92 Here's the patch which solves thi http://svn.mandriva.com/cgi-bin/viewvc.cgi/packages/cooker/exo/current/SOURCES/exo-0.3.92-format-strings.patch
Already in trunk for a few weeks (and also quite useless for a distribution to apply to their package since it's not a bug or a potential security problem since g_strerror always returns something 'normal').