update test oracles

src/plugins/e-acsl/tests/format/oracle_ci/fprintf.res.oracle

src/plugins/e-acsl/tests/format/oracle_ci/gen_fprintf.c

src/plugins/e-acsl/tests/format/oracle_ci/gen_printf.c

src/plugins/e-acsl/tests/format/oracle_ci/printf.res.oracle

src/plugins/variadic/tests/known/oracle/fcntl.res.oracle

src/plugins/variadic/tests/known/oracle/open.res.oracle

...plugins/variadic/tests/known/oracle/open_wrong.res.oracle

src/plugins/variadic/tests/known/oracle/openat.res.oracle