[PATCHES] Fix build errors and sandbox bugs in the Solaris port

[Poul-Henning Kamp]

In message <501AB0A0.30503 at schokola.de>, Nils Goroll writes:

>Thanks for the refactoring, as always, your version of the same idea is cleaner. :)
>
>Here's a patch for the solaris sandbox, which also fixes a nit in mgt_sandbox.c

Committed.

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