Fix memleak in OGROpenFileGDBDataSource::GetFileList() (trunk only)

git-svn-id: https://svn.osgeo.org/gdal/trunk@27495 f0d54148-0727-0410-94bb-9a71ac55c965
Fix correct sorting of StringList / metadata (#5540, #5557)

git-svn-id: https://svn.osgeo.org/gdal/trunk@27496 f0d54148-0727-0410-94bb-9a71ac55c965
Merge branch 'trunk' into trunk_travis_macosx