update vendor

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/block/sectorReadError.go

@@ -13,7 +13,7 @@ type SectorReadError struct {
 // Error returns the string representation  of the SectorReadError instance.
 //
 func (e *SectorReadError) Error() string {
-	return fmt.Sprint("Read sector '%d' of block '%d' failed: %s", e.SectorIndex, e.BlockIndex, e.err)
+	return fmt.Sprintf("Read sector '%d' of block '%d' failed: %s", e.SectorIndex, e.BlockIndex, e.err)
 }
 
 // NewSectorReadError returns a new SectorReadError instance.

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/diskstream/diskstream.go

@@ -19,8 +19,8 @@ type DiskStream struct {
 	offset          int64
 	size            int64
 	isClosed        bool
-	vhdFactory      *vhdFile.FileFactory
-	vhdFile         *vhdFile.VhdFile
+	vhdFactory      *vhdfile.FileFactory
+	vhdFile         *vhdfile.VhdFile
 	vhdBlockFactory block.Factory
 	vhdFooterRange  *common.IndexRange
 	vhdDataRange    *common.IndexRange
@@ -39,7 +39,7 @@ type StreamExtent struct {
 func CreateNewDiskStream(vhdPath string) (*DiskStream, error) {
 	var err error
 	stream := &DiskStream{offset: 0, isClosed: false}
-	stream.vhdFactory = &vhdFile.FileFactory{}
+	stream.vhdFactory = &vhdfile.FileFactory{}
 	if stream.vhdFile, err = stream.vhdFactory.Create(vhdPath); err != nil {
 		return nil, err
 	}

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/footer/vhdFeature.go

@@ -35,5 +35,5 @@ func (v VhdFeature) String() string {
 		return "Reserved"
 	}
 
-	return fmt.Sprint("%d", v)
+	return fmt.Sprintf("%d", v)
 }

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/header/parentlocator/platformCode.go

@@ -55,5 +55,5 @@ func (p PlatformCode) String() string {
 		return "MacX"
 	}
 
-	return fmt.Sprint("%d", p)
+	return fmt.Sprintf("%d", p)
 }

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/validator/validator.go

@@ -14,7 +14,7 @@ const oneTB int64 = 1024 * 1024 * 1024 * 1024
 // ValidateVhd returns error if the vhdPath refer to invalid vhd.
 //
 func ValidateVhd(vhdPath string) error {
-	vFactory := &vhdFile.FileFactory{}
+	vFactory := &vhdfile.FileFactory{}
 	_, err := vFactory.Create(vhdPath)
 	if err != nil {
 		return fmt.Errorf("%s is not a valid VHD: %v", vhdPath, err)

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/vhdfile/vhdFile.go

@@ -1,4 +1,4 @@
-package vhdFile
+package vhdfile
 
 import (
 	"fmt"
@@ -16,7 +16,8 @@ type VhdFile struct {
 	// Footer represents the disk's footer.
 	Footer *footer.Footer
 	// Header represents the disk's header, this field is nil for fixed VHD.
-	// Only Dynamic and Differencing disk has header.
+	// Only Dynamic and Differencing disk has header.make
+
 	Header *header.Header
 	// BlockAllocationTable represents the table holding absolute offset to the first sector
 	// of blocks in the disk. Only Dynamic and Differencing disk has BAT.

vendor/github.com/Microsoft/azure-vhd-utils/vhdcore/vhdfile/vhdFileFactory.go

@@ -1,4 +1,4 @@
-package vhdFile
+package vhdfile
 
 import (
 	"os"