When in a unity-build GCC 13 sees the implementation of
forkfd_wait4(), called dfrom forkfd_wait(), it can prove that there
are paths that do not initialize *info: Those paths are the returns
following fcntl() in system_forkfs_wait() in forkd_linux.c and read()
in forkfd_wait4().
To work around the issue and unbreak unity-builds, initialize info = {}.
Task-number: QTBUG-119081
Pick-to: 6.6 6.5
Change-Id: I1b3504e7f83c766ebccc851233d4c3e677bf2acd
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
635774fc32