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* always close ELF cataloger file handles The elf-binary-package-cataloger does its own file IO to account for the possibility of a logical ELF package being broken across multiple physical files. However, this casued it to skip the normal invocation pattern in the generic cataloger code that prevented file leaks. Ensure this cataloger always closes its file handles. Signed-off-by: Will Murphy <will.murphy@anchore.com> * defer closing of generic cataloger file handles Otherwise, a panicking cataloger could leak file handles. Signed-off-by: Will Murphy <will.murphy@anchore.com> * add unit test for file closed on panic parser Signed-off-by: Will Murphy <will.murphy@anchore.com> * make invoke parser a static function Signed-off-by: Will Murphy <will.murphy@anchore.com> * push error logging down into invoke parser Signed-off-by: Will Murphy <will.murphy@anchore.com> --------- Signed-off-by: Will Murphy <will.murphy@anchore.com>