Fix require func.php

[yubiuser]

• I have read and understood the contributors guide, as well as this entire template.
• I have made only one major change in my proposed changes.
• I have commented my proposed changes within the code.
• I have tested my proposed changes.
• I am willing to help maintain this change if there are issues with it later.
• I give this submission freely and claim no ownership.
• It is compatible with the EUPL 1.2 license
• I have squashed any insignificant commits. (git rebase)
• I have Signed Off all commits. (git commit --signoff)

---

What does this PR aim to accomplish?:

Fix errors reported on discourse (https://discourse.pi-hole.net/t/tools-network-errors-in-beta/48611) due to 03920e3. The commit added require("scripts/pi-hole/php/func.php"); to api_db.php but it was already required by the also included scripts/pi-hole/php/auth.php

How does this PR accomplish the above?:

Replace require with require_once

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/tools-network-errors-in-beta/48611/12

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-ftl-v5-9-web-v5-6-and-core-v5-4-released/49544/1