Replace whitespace-longlines-mode with column-enforce-mode

.emacs.d/init.el

@@ -157,21 +157,6 @@
   (add-hook 'gud-mode-hook
             '(lambda () (setq-local comint-prompt-read-only t))))
 
-(use-package whitespace
-  :config
-  (define-minor-mode whitespace-longlines-mode
-    :lighter    " ll"
-    :init-value nil
-    :global     nil
-    :group      'whitespace
-    (let ((whitespace-style '(face lines-tail)))
-      (whitespace-mode (if whitespace-longlines-mode
-                           1 -1)))
-    ;; sync states (running a batch job)
-    (setq whitespace-longlines-mode whitespace-mode))
-  (add-hook 'prog-mode-hook #'whitespace-longlines-mode))
-
-
 (use-package org
   :defer
   :bind (:map org-mode-map ("C-z" . org-latex-export-to-pdf))
@@ -231,7 +216,7 @@
                                    ("^:Doc:WPI/" ":WPI:")
                                    ("^/sshx:ccc:" ">ccc:")
                                    ("^>ccc:/home/asgoldsmith" ":>ccc:~"))
-        rm-blacklist '(" company" " Undo-Tree" " ivy")))
+        rm-blacklist '(" company" " Undo-Tree" " ivy" " 80col")))
 
 (use-package avy :ensure
   :config
@@ -355,6 +340,11 @@
   :demand
   :bind (:map outline-minor-mode-map ("M-<tab>" . outline-cycle)))
 
+(use-package column-enforce-mode :ensure
+  :config
+  (add-hook 'prog-mode-hook 'column-enforce-mode)
+  (copy-face 'whitespace-line 'column-enforce-face))
+
 ;;;; optional external packages
 (use-package arduino-mode
   :mode "\\.pde\\'"