Imports of fieldnamedocscheck command

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/spf13/pflagPackage pflag is a drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
k8s.io/apimachinery/pkg/runtimePackage runtime defines conversions between generic types and structs to map query strings to struct objects.
k8s.io/apimachinery/pkg/util/setsPackage sets has generic set and specified sets.
k8s.io/klog/v2Package klog contains the following functionality:
osPackage os provides a platform-independent interface to operating system functionality.
regexpPackage regexp implements regular expression search.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.