[4.x] Fix open_basedir warning when creating a menu item

[Fedik]

Pull Request for Issue #36788 and #35895 .

Summary of Changes

Correctly check path. Same as #36789

Testing Instructions

Follow #36788 and #35895

Actual result BEFORE applying this Pull Request

A warning about open_basedir stuff

Expected result AFTER applying this Pull Request

No warning

Documentation Changes Required

None

[ChristineWk]

Thank you @Fedik
For J 3 = OK. (36789)
For J 4 = (Patchtester) got Message:
404RuntimeException
Invalid Issue

[ChristineWk]

Tested successfully.

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[richard67]

I see that @ChristineWk could not mark her test result because the "Test this" button is missing in the issue tracker. A problem which we sometimes have for (yet) unknown reasons. Maybe it will appear later, we will see.

[richard67]

I have also tested with success. Still no "Test this" button for this PR in the issue tracker, but it has 2 human tests so I set it RTC (if that will work at least).

[richard67]

RTC

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[bembelimen]

Thx