[patch] fix warnings with -D_FORTIFY_SOURCE and -Wformat-security

[Matthias Klose]

when GCC is built with a compiler which has some hardening options turned on by
default, the build fails when configured without --disable-werror.  This patch
fixes all these warnings (java doesn't need any patches, didn't check ada yet).
A biarch build r144872 doesn't show any regressions with and without this patch.

An alternative would be checking for these options and adding the
-Wno-error=format-security and -U_FORTIFY_SOURCE options.

  Matthias
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