cryptsetup: fix OOM handling when parsing mount options
journald: add missing error check
bus: fix potentially uninitialized memory access
dbus: fix return value of dispatch_rqueue()
modules-load: fix error handling
efi: never call qsort on potentially NULL arrays
strv: don't access potentially NULL string arrays
mkdir: pass a proper function pointer to mkdir_safe_internal
nspawn: always copy /etc/resolv.conf rather than bind mount

We were already creating the file if it was missing, and this way
containers can reconfigure the file without running into problems.

This also makes resolv.conf handling more alike to handling of
/etc/localtime, which is also not a bind mount.