remove glog dependency from kustomize code (#542)

pkg/resmap/resmap.go

@@ -20,11 +20,11 @@ package resmap
 import (
 	"bytes"
 	"fmt"
+	"log"
 	"reflect"
 	"sort"
 
 	"github.com/ghodss/yaml"
-	"github.com/golang/glog"
 	"sigs.k8s.io/kustomize/pkg/ifc"
 	"sigs.k8s.io/kustomize/pkg/resid"
 	"sigs.k8s.io/kustomize/pkg/resource"
@@ -181,17 +181,17 @@ func MergeWithOverride(maps ...ResMap) (ResMap, error) {
 				id = matchedId[0]
 				switch r.Behavior() {
 				case ifc.BehaviorReplace:
-					glog.V(4).Infof(
+					log.Printf(
 						"Replace %v with %v", result[id].Map(), r.Map())
 					r.Replace(result[id])
 					result[id] = r
 					result[id].SetBehavior(ifc.BehaviorCreate)
 				case ifc.BehaviorMerge:
-					glog.V(4).Infof(
+					log.Printf(
 						"Merging %v with %v", result[id].Map(), r.Map())
 					r.Merge(result[id])
 					result[id] = r
-					glog.V(4).Infof(
+					log.Printf(
 						"Merged object is %v", result[id].Map())
 					result[id].SetBehavior(ifc.BehaviorCreate)
 				default:

pkg/target/kusttarget.go

@@ -21,10 +21,10 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"log"
 	"strings"
 
 	"github.com/ghodss/yaml"
-	"github.com/golang/glog"
 	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/pkg/constants"
 	"sigs.k8s.io/kustomize/pkg/fs"
@@ -318,7 +318,7 @@ func (kt *KustTarget) resolveRefVars(m resmap.ResMap) (map[string]string, error)
 			}
 			result[v.Name] = s
 		} else {
-			glog.Infof("couldn't resolve v: %v", v)
+			log.Printf("couldn't resolve v: %v", v)
 		}
 	}
 	return result, nil