Fix wrong tag for cloudwatch metrics response. Closes #2267.
Fix wrong tag for cloudwatch metrics response. Closes #2267.

william-richard/moto,spulec/moto,william-richard/moto,whummer/moto,william-richard/moto,whummer/moto,whummer/moto,spulec/moto,spulec/moto,william-richard/moto,whummer/moto,spulec/moto,spulec/moto,william-richard/moto,spulec/moto,whummer/moto,whummer/moto,william-richard/moto