GitLab

* play/decipher.el (decipher-mode, decipher-stats-mode):
* play/gomoku.el (gomoku-mode):
* play/snake.el (snake-mode):
* play/solitaire.el (solitaire-mode):
* play/tetris.el (tetris-mode): Use run-mode-hooks.

* play/landmark.el (lm-mode):
* play/mpuz.el (mpuz-mode): Use kill-all-local-variables and
run-mode-hooks.