Build/Test Tools: Reduce the use of unnecessary randomness in tests.

This increases the overall reliability of the tests.

Props johnillo

Fixes #37371


git-svn-id: https://develop.svn.wordpress.org/trunk@52389 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/term/splitSharedTerm.php

@@ -208,7 +208,7 @@ class Tests_Term_SplitSharedTerm extends WP_UnitTestCase {
 			array( '%d' )
 		);
 
-		$menu_id       = wp_create_nav_menu( rand_str() );
+		$menu_id       = wp_create_nav_menu( 'Nav Menu Bar' );
 		$cat_menu_item = wp_update_nav_menu_item(
 			$menu_id,
 			0,