Emit comments with shortened file names (previous commit).

Limit search to the input file's directory.

Cope with properties tcg (commit b2b36c22) and vcpu (commit
3d211d9f).

Cope with capital letters in function names.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20190314180929.27722-4-armbru@redhat.com
Message-Id: <20190314180929.27722-4-armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>