[DGD] What does normalize_path() do?

[Robert Forshaw]

Is it anything like converting:

/././././sys/../sys/important_object_that_nobody_may_have_access_to.c

into /sys/important_object_that_nobody_may_have_access_to.c

To prevent people from bypassing security checks? I think it is but I'm not 
100%, so I'm asking. :)

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