trivial: Ignore null-dereference static analysis check
trivial: Ignore null-dereference static analysis check

The null-dereference check doesn't seem to work right in some cases (it
just assumes some values in called functions could be NULL even though
they have previously been checked to be non-NULL).

ximion/appstream,ximion/appstream,ximion/appstream,ximion/appstream