Quoting issues in Bash script `grub-fs-tester` causes F2FS test failure

[Paul Menzel]

Dear GRUB folks,


Running `sudo env make -e check VERBOSE=yes SUBDIRS=` the F2FS is one of 
the two tests failing. It returns 255.

Running only the specific test

    sudo env TESTS=f2fs_test make -e check VERBOSE=yes SUBDIRS=

which runs

    sudo ./grub-fs-tester f2fs

and using `set -ex` in `grub-fs-tester` the call below has quoting issues.

                xf2fs)
                    "mkfs.f2fs" -l "$FSLABEL" -q "${LODEVICES[0]}"

fails due to the loop device being passed in single quotes, which does 
not exist with the leading space.

     + LODEVICE=/dev/loop11
     + LODEVICES=' /dev/loop11'

     + mkfs.f2fs -l 
'grub_;/testé䏌䐓䏕киритiurewfceniuewruewnuuireurevueurnievrewfnerfcnevirivinrewvnirewnivrewiuvcrewvnuewvrrrewniuerwreiuviurewiuviurewnuvewnvrenurnunuvrevuurerejiremvreijnvvcreivire 
nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoirvcreivire 
nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoircreivire 
nverivnreivrevnureiorfnfrvoeoiroireoireoifrefoieroifoireoifoiq' -q ' 
/dev/loop11'
     FAIL f2fs_test (exit status: 255)

Is there a Bash expert in here, able to fix it?


Kind regards,

Paul