[PATCH] Add option to operate on symbolic links for sys::fs::remove() and sys::fs::status()

[Argyrios Kyrtzidis]

Hi Rafael,

The attached patch introduces a boolean option to sys::fs::remove() and sys::fs::status() to allow them to operate on a symbolic link directly (if the provided path is one).
This is then used by LockFileManager as the patch demonstrates.

Please review!

-Argyrios
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