In the process of adding new functionality to the xref script,
I realized it is much too fragile. It's too easy to make some
minor change that could break the crossrefs, giving us the
illusion of testing.
Solution: add a test suite for the script. Still incomplete,
but an important step toward building confidence.
Requires minor surgery to the script itself
Signed-off-by: Ed Santiago <santiago@redhat.com>
f90b4e79a6