Fingerprint: Fix comment typo

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Fingerprint.getFileHash: Fix not reading file at all.

This lead to the stage1 compiler calculating random iface hashes.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
Fix validation failure in Fingerprint.hsc

Signed-off-by: Austin Seipp <aseipp@pobox.com>