pdumper test failures: invalid faces

[Glenn Morris]

It's fantastic to see a portable dumper for Emacs!

"make check" has a number of failures, which I assume are not specific
to my machine. Many are to do with invalid faces. A minimal example
might be:

./src/emacs -Q --batch --eval "(describe-face 'shadow)"
-> "Invalid face: tooltip"


Unrelated:
pdumper.c has no copyright header
pdumper.h, fingerprint.h, fingerprint-dummy.c have outdated copyright years
make-fingerprint.c has outdated and probably bogus years