Clone was not declared a dependency before. It used to be a dependency
of Hash::Merge but isn't in the recent version.
Signed-off-by: Mirko Tietgen <mirko@abunchofthings.net> Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de> Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz> Signed-off-by: Nick Clemens <nick@bywatersolutions.com>