[Bug c/79358] gcc.dg/c99-stdint-1.c fails with excess error

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79358

--- Comment #1 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
(built with --enable-bootstrap, --enable-multilib and --with-arch=zEC12)