custom_people_desc.module

<?php
function custom_people_desc_form_alter(&$form, &$form_state, $form_id) {
  if(in_array($form_id,['user_form','user_edit_form'])) {
    $form['account']['mail']['#description'] = t('Add email address of user being added.');
    $form['account']['name']['#description'] = t('Note: Put the full name.#@osu.edu of the person being added. If they are not an Ohio State person then insert their email address.');
  }
  if(in_array($form_id,['user-register-form','user_register_form'])) {
    $form['account']['mail']['#description'] = t('Add email address of user being added.');
    $form['account']['name']['#description'] = t('Note: Put the full name.#@osu.edu of the person being added. If they are not an Ohio State person then insert their email address.');
  }
}