[Dnssec-trigger] patch: improve dnssec-trigger-script locking and avoid a dependency

[W.C.A. Wijngaards]

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Hi Pavel.

On 07/29/2014 12:29 PM, Pavel Simerda wrote:
> Hi,
> 
> the python lockfile module doesn't handle stale locks properly. It
> turned out that using fcntl.flock handles that and doesn't need any
> additional dependencies.
> 
> Patch included. Tested with Python 3.x and 2.x.

Thanks, committed.

Best regards,
   Wouter

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