drop grub-1.99-grub_test_assert_printf.patch fixed upstream
    
    revno: 4377
    author: Peter Jones <pjones@redhat.com>
    committer: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
    branch nick: grub
    timestamp: Sun 2012-05-27 14:26:18 +0200
    message:
            The old code gives arguments to a printf function which can't work
            correctly, and the compiler complains.
    
            * grub-core/tests/example_functional_test.c (example_test): Add
            missing text.
            * grub-core/tests/lib/test.c (add_failure): Rewrite.
            * include/grub/test.h (grub_test_assert_helper): New declaration.
            (grub_test_assert): Use grub_test_assert_helper.