[bugs] calcurse allows multiple daemon copies to run

I'm not sure if it's a bug or a feature, but currently it allows to run
many calcurse daemon instances at once:

$ calcurse --daemon
$ calcurse --daemon
$ calcurse --daemon
$ calcurse --daemon
$ pgrep calcurse | wc -l
4

daemon config flag is enabled.

Thanks.

--
Vlad Glagolev <stealth@xxxxxxxxxxx>

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