Fixed findings

List of Findings

Error: SHELLCHECK_WARNING (CWE-457): [#def1]
/usr/share/lvm2-testsuite/shell/pvcreate-operation.sh:32:13: warning[SC2154]: dev1 is referenced but not assigned.
#   30|   # pvcreate (lvm$mdatype) refuses to overwrite an mounted filesystem (bz168330)
#   31|   	test ! -d mnt && mkdir mnt
#   32|-> 	if mke2fs "$dev1"; then
#   33|   		mount "$dev1" mnt
#   34|   		not pvcreate -M$mdatype "$dev1" 2>err

Error: SHELLCHECK_WARNING (CWE-457): [#def2]
/usr/share/lvm2-testsuite/shell/vgimportclone.sh:19:44: warning[SC2154]: dev1 is referenced but not assigned.
#   17|   aux prepare_devs 3
#   18|   
#   19|-> vgcreate $SHARED --metadatasize 128k $vg1 "$dev1"
#   20|   lvcreate -l100%FREE -n $lv1 $vg1
#   21|   

Error: SHELLCHECK_WARNING (CWE-457): [#def3]
/usr/share/lvm2-testsuite/shell/vgimportclone.sh:20:24: warning[SC2154]: lv1 is referenced but not assigned.
#   18|   
#   19|   vgcreate $SHARED --metadatasize 128k $vg1 "$dev1"
#   20|-> lvcreate -l100%FREE -n $lv1 $vg1
#   21|   
#   22|   # Test plain vgexport vgimport tools

Error: SHELLCHECK_WARNING (CWE-457): [#def4]
/usr/share/lvm2-testsuite/shell/vgimportclone.sh:28:21: warning[SC2154]: vg is referenced but not assigned.
#   26|   invalid vgimport
#   27|   # Cannot combine -a and VG name
#   28|-> invalid vgexport -a $vg
#   29|   invalid vgimport -a $vg1
#   30|   # Cannot export unknonw VG

Error: SHELLCHECK_WARNING (CWE-457): [#def5]
/usr/share/lvm2-testsuite/shell/vgimportclone.sh:51:23: warning[SC2154]: dev2 is referenced but not assigned.
#   49|   # from df, then add it again after the dd.
#   50|   if lvmdevices; then
#   51|-> 	lvmdevices --deldev "$dev2"
#   52|   fi
#   53|   

Error: SHELLCHECK_WARNING (CWE-457): [#def6]
/usr/share/lvm2-testsuite/shell/vgimportclone.sh:76:28: warning[SC2154]: vg2 is referenced but not assigned.
#   74|   
#   75|   # Import the cloned PV to a new VG
#   76|-> vgimportclone --basevgname $vg2 "$dev2"
#   77|   
#   78|   lvmdevices || true

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