Add comment to explain why looking for all files

evocheck.sh

@@ -716,6 +716,8 @@ check_backupuptodate() {
     backup_dir="/home/backup"
     if [ -d "${backup_dir}" ]; then
         if [ -n "$(ls -A ${backup_dir})" ]; then
+            # Look for all files, including subdirectories.
+            # If this turns out to be problematic, we can go back to first level only, with --max-depth=1
             find "${backup_dir}" -type f | while read -r file; do
                 limit=$(date +"%s" -d "now - 2 day")
                 updated_at=$(stat -c "%Y" "$file")