fix show delete list in dry run mode

btrfs-snapshots.sh

@@ -110,7 +110,7 @@ for fs in ${BTRFS_VOLUMES}; do
             echo " " mount "$device" "$TMP_MNT"
             echo " " btrfs subvolume snapshot "${TMP_MNT}${subvol}" "${TMP_MNT}${target}${date}"
             if test -n "$del"; then
-                for f in $(ls -1 "${TMP_MNT}${target}${date}"-* | tail -n +"$del"); do
+                for f in $(ls -1 "${TMP_MNT}${target}"-* | tail -n +"$del"); do
                     echo " " btrfs subvolume delete "$f"
                 done
             fi
@@ -118,7 +118,7 @@ for fs in ${BTRFS_VOLUMES}; do
         else
             sudo btrfs subvolume snapshot "${TMP_MNT}${subvol}" "${TMP_MNT}${target}${date}"
             #if test -n "$del"; then
-            #    for f in $(ls -1 "${TMP_MNT}${target}${date}"-* | tail -n +"$del"); do
+            #    for f in $(ls -1 "${TMP_MNT}${target}"-* | tail -n +"$del"); do
             #        sudo btrfs subvolume delete "$f"
             #    done
             #fi