This change fixes commandline arguments processing of clustermesh-apiserver
This change fixes commandline arguments processing of clustermesh-apiserver

Commandline arguments accessed through the option.Config object
(eg. --identity-allocation-mode, --kvstore-opt) were not processed properly.
Function option.Config.Populate() was called too soon (before calling of
rootCmd.Execute(), but os.Args are processed just by rootCmd.Execute()).

Also there was missing debug log-level setting so debug messages did not work at all.

Signed-off-by: adam.bocim <e9d6eaedd4f7f091c59388747c44aec1c0135c39@firma.seznam.cz>

michi-covalent/cilium,cilium/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium