fix: shellcheck for modules.d/90dmsquash-live/apply-live-updates.sh

modules.d/90dmsquash-live/apply-live-updates.sh

@@ -2,21 +2,17 @@
 
 if [ -h /dev/root ] && [ -d /run/initramfs/live/updates -o -d /updates ]; then
     info "Applying updates to live image..."
-    mount -o bind /run $NEWROOT/run
+    mount -o bind /run "$NEWROOT"/run
     # avoid overwriting symlinks (e.g. /lib -> /usr/lib) with directories
     for d in /updates /run/initramfs/live/updates; do
         [ -d "$d" ] || continue
         (
-            cd $d
-            find . -depth -type d | while read dir; do
-                mkdir -p "$NEWROOT/$dir"
-            done
-            find . -depth \! -type d | while read file; do
-                cp -a "$file" "$NEWROOT/$file"
-            done
+            cd "$d" || return 0
+            find . -depth -type d -exec mkdir -p "$NEWROOT/{}" \;
+            find . -depth \! -type d -exec cp -a "{}" "$NEWROOT/{}" \;
         )
     done
-    umount $NEWROOT/run
+    umount "$NEWROOT"/run
 fi
 # release resources on iso-scan boots with rd.live.ram
 if [ -d /run/initramfs/isoscan ] &&