Commits351d12437("nixos/release-notes: PHP config-file-scan-dir /etc -> /etc/php.d")41c8aa8d6("php: change config-file-scan-dir from /etc to /etc/php.d") were merged to master _after_ NixOS 16.09. Commit351d12437then wrongly updated the NixSO 16.09 release notes. Fix by moving the entry to NixOS 17.03.