cfg-to-arc:Arc<Mutex<cfg::Config>> Conversion
cfg-to-arc:Arc<Mutex<cfg::Config>> Conversion

Accept less direct access to configuration object.

Signed-off-by: Owen Synge <ea78e0e20fce5319fd66b8fd4f543d9e30ef46a5@googlemail.com>

osynge/whenenv-rust,osynge/whenenv-rust