Incorrect report of package files for installed RPM

When scanning with `docker` pipeline the `docker://centos:8` image, there are some files found not to be in a package which is a likely bug.
Some should be ignored per #212
These are a problem and should not have been dangling:
```
path
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/ld-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libanl-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libaudit.so.1.0.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libauparse.so.0.0.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libBrokenLocale-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libc-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libcap-ng.so.0.0.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libcrypt.so.1.1.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/.libcrypt.so.1.1.0.hmac
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libdl-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libgcc_s-8-20191121.so.1
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libkcapi.so.1.2.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libm-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libmvec-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libnss_compat-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libnss_dns-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libnss_files-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libpthread-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libresolv-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/librt-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libSegFault.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libthread_db-1.0.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libtirpc.so.3.0.0
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib64/libutil-2.28.so
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib/python3.6/site-packages/setuptools/command/launcher_manifest.xml
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib/python3.6/site-packages/setuptools/script_(dev).tmpl
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/lib/sysctl.d/10-default-yama-scope.conf
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/sbin/chkconfig
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/sbin/install-info
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/sbin/ldconfig
/centos_8.tar-extract/2653d992f4ef2bfd27f94db643815aa567240c37732cae1405ad1c1309ee9859/usr/share/metainfo/org.fedoraproject.LangPack-en.metainfo.xml

```

These are the corresponding xml from installed RPM
[rpm-installed-missing-ld.xml.zip](https://github.com/nexB/scancode.io/files/6681401/rpm-installed-missing-ld.xml.zip)