Imports of package promlint

PathSynopsis
errorsPackage errors implements functions to manipulate errors.
github.com/prometheus/client_golang/prometheus/testutil/promlint/validations
github.com/prometheus/client_model/go
github.com/prometheus/common/expfmtPackage expfmt contains tools for reading and writing Prometheus metrics.
ioPackage io provides basic interfaces to I/O primitives.
sortPackage sort provides primitives for sorting slices and user-defined collections.