+The exact combination of contributing and mitigating factors is not
+fully understood; GNU glibc 2.7 and 2.10.1 on i586 report EILSEQ when
+printing invalid sequences through a %.*s format string in multibyte
+locales such as de_DE.UTF-8; NetBSD 5, FreeBSD 8 and Solaris 10 do not.
+However, the issue is a genuine fetchmail bug that deserves a fix.
+