message: Fix warning in add_pdo_extension
diff: @@ -139,7 +139,7 @@ add_pdo_extension() {
  else
  read -r ext ext_name <<< "$1 $1"
  sudo rm -rf "$scan_dir"/*pdo.ini >/dev/null 2>&1
  - if ! check_extension "pdo"; then echo "extension=pdo.so" >> "$ini_file"; fi
  + if ! check_extension "pdo" 2>/dev/null; then echo "extension=pdo.so" >> "$ini_file"; fi
  if [ "$ext" = "mysql" ]; then
  enable_extension "mysqlnd" "extension"
  ext_name="mysqli"
  