Ingo Schommer 96d1625102 MINOR Made File::get_file_extension() more readable, and added unit test (from r107267)
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@112555 467b73ca-7a2a-4603-9d3b-597d59a354a9
2010-10-15 03:14:59 +00:00
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