Updated version of the `git show --follow-symlink` patch. This version includes the feedback from Ævar Arnfjörð Bjarmason and Stefan Beller:
- commit message updated - test fixes merged from Ævar (thanks!) - Documentation/git-show.txt clarified It does not include a test for --follow-symlinks in the dirlink case when a file is behind a dirlink symlink. This this currently fails with a non-descriptive error message. I hope to find time to improve this error message at some point and then a test for this will be added. It also does not include a test for a repo with symlinks when running on a system without SYMLINKS. I don't have access to such a system, sorry.
