Bump PHP memory limit from 800M to 1200M in populate_adm_tree.php
The PHP script populate_adm_tree.php was still failing with
PHP Fatal error: Out of memory (allocated 552599552) (tried to allocate 32 bytes) in populate_adm_tree.php on line 46
Increasing the memory limit is the obvious solution.
Testing on Toolforge, 800M was still not enough, 1200M was.
Follow-up to a230a6e6