Ebuild 2.9 has a missing or malformed copyright/licensing header.
[Notice] Ebuild 2.9 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Warning] Ebuild 2.9 has a line exceeding 80 positions on line 4.
[Warning] Ebuild 2.9 has a line exceeding 80 positions on line 6.
[Warning] Ebuild 2.9 has trailing whitespace on line 12.
[Warning] Ebuild 2.9 uses spaces for indentation on line 14.
[Warning] Ebuild 2.9 uses spaces for indentation on line 15.
[Warning] Ebuild 2.9 uses spaces for indentation on line 16.
[Warning] Ebuild 2.9 uses spaces for indentation on line 17.
[Error] Manifest entry for unused DIST file 'kindlegen-bin-2.9.tar.gz'
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Notice] Package has only unstable keywords for arch(es): [ amd64, x86 ], all versions are unstable: [ 2.9 ]
[Error] Invalid or missing metadata.xml: open app-text/kindlegen-bin/metadata.xml: file does not exist