style: make shell scripts follow shfmt

scripts/fs-diff.sh

@@ -4,17 +4,17 @@ OLD_TRANSID=$(sudo btrfs subvolume find-new /mnt/root-blank 9999999)
 OLD_TRANSID=${OLD_TRANSID#transid marker was }
 
 sudo btrfs subvolume find-new "/mnt/root" "$OLD_TRANSID" |
-sed '$d' |
-cut -f17- -d' ' |
-sort |
-uniq |
-while read -r path; do
-  path="/$path"
-  if [ -L "$path" ]; then
-    : # The path is a symbolic link, so is probably handled by NixOS already
-  elif [ -d "$path" ]; then
-    : # The path is a directory, ignore
-  else
-    echo "$path"
-  fi
-done
+    sed '$d' |
+    cut -f17- -d' ' |
+    sort |
+    uniq |
+    while read -r path; do
+        path="/$path"
+        if [ -L "$path" ]; then
+            : # The path is a symbolic link, so is probably handled by NixOS already
+        elif [ -d "$path" ]; then
+            : # The path is a directory, ignore
+        else
+            echo "$path"
+        fi
+    done