Update kubernetes projects version in vendor to 1.12.1

vendor/k8s.io/client-go/tools/clientcmd/api/helpers.go

@@ -29,6 +29,8 @@ import (
 func init() {
 	sDec, _ := base64.StdEncoding.DecodeString("REDACTED+")
 	redactedBytes = []byte(string(sDec))
+	sDec, _ = base64.StdEncoding.DecodeString("DATA+OMITTED")
+	dataOmittedBytes = []byte(string(sDec))
 }
 
 // IsConfigEmpty returns true if the config is empty.
@@ -79,7 +81,10 @@ func MinifyConfig(config *Config) error {
 	return nil
 }
 
-var redactedBytes []byte
+var (
+	redactedBytes    []byte
+	dataOmittedBytes []byte
+)
 
 // Flatten redacts raw data entries from the config object for a human-readable view.
 func ShortenConfig(config *Config) {
@@ -97,7 +102,7 @@ func ShortenConfig(config *Config) {
 	}
 	for key, cluster := range config.Clusters {
 		if len(cluster.CertificateAuthorityData) > 0 {
-			cluster.CertificateAuthorityData = redactedBytes
+			cluster.CertificateAuthorityData = dataOmittedBytes
 		}
 		config.Clusters[key] = cluster
 	}