fix the volumeName size use

9 jobs for no-tchar in 10 minutes and 38 seconds
Status Job ID Name Coverage
  Build
passed #265597
amd64 debian
build:linux

00:02:45

passed #265598
win32
build:win32

00:02:40

passed #265599
win64
build:win64

00:02:42

 
  Unit Tests
passed #265600
amd64 debian
unit-tests:linux

00:03:20

passed #265601
win32
unit-tests:win32

00:02:45

passed #265602
win64
unit-tests:win64

00:04:01

 
  Functional Tests
passed #265603
amd64 debian
functional-tests:linux

00:03:15

passed #265604
win32
functional-tests:win32

00:02:35

passed #265605
win64
functional-tests:win64

00:03:51