[PATCH 1/3] Remove unnecessary duplicate check.

[Werner Koch]

On Thu, 22 Jan 2015 16:35, gnoack at google.com said:

> this and the following two patches are some trivial bugs found with
> the Clang static analyzer.  Patch 1 and 2 remove unnecessary duplicate

Thanks.  I applied them as a single pacth.

> checks, patch 3 addresses a copy&paste glitch which mixes up int and
> unsigned int.

This is a real bug which inhibited the validity checking of all uint32
arguments (e.g. cache time).  I also backported it to 2.0.

Thanks,

  Werner

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