[Bug analyzer/109120] False positive -Wanalyzer-malloc-leak with failed iconv_open()

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109120

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Thanks for filing this bug.  Seems to affect GCC 11 onwards, as GCC 10 didn't
support the 2nd argument to __attribute__((malloc)):

   Trunk: https://godbolt.org/z/MbWezaxrz
GCC 12.2: https://godbolt.org/z/vW1ae44Eb
GCC 11.3: https://godbolt.org/z/n9fzx8376