Use humanize constants for KiB, MiB and GiB units. (#3322)

cmd/utils.go

@@ -27,6 +27,7 @@ import (
 
 	"encoding/json"
 
+	humanize "github.com/dustin/go-humanize"
 	"github.com/pkg/profile"
 )
 
@@ -112,9 +113,9 @@ func checkValidMD5(md5 string) ([]byte, error) {
 /// http://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
 const (
 	// maximum object size per PUT request is 5GiB
-	maxObjectSize = 1024 * 1024 * 1024 * 5
-	// minimum Part size for multipart upload is 5MB
-	minPartSize = 1024 * 1024 * 5
+	maxObjectSize = 5 * humanize.GiByte
+	// minimum Part size for multipart upload is 5MiB
+	minPartSize = 5 * humanize.MiByte
 	// maximum Part ID for multipart upload is 10000 (Acceptable values range from 1 to 10000 inclusive)
 	maxPartID = 10000
 )