Update scripts/verify-spelling.sh

Co-authored-by: Tim Bannister <tim@scalefactory.com>

scripts/verify-spelling.sh

@@ -71,7 +71,7 @@ failing_packages=$(sed "s| | -e |g" "${skipping_file}")
 git ls-files -z | grep --null-data "^content/${LANGUAGE}" | grep --null-data -v -e "${failing_packages}" | xargs -0 -r misspell > "${ERROR_LOG}"
 if [[ -s "${ERROR_LOG}" ]]; then
   sed 's/^/error: /' "${ERROR_LOG}" # add 'error' to each line to highlight in e2e status
-  echo "Found spelling errors!"
+  echo "Found spelling errors!" >&2
   RES=1
 fi
 exit "${RES}"