solidity: Add custom line length

lisp/init-solidity.el

                  (append '((company-solidity company-capf company-dabbrev-code))
                          company-backends))))
 
+
+;; https://gitlab.haskell.org/ghc/ghc/wikis/emacs
+(require 'whitespace)
+(defun solidity-custom-line-length ()
+  (setq whitespace-style '(face lines-tail))
+  (setq whitespace-line-column 145)
+  (global-whitespace-mode t))
+
+(add-hook 'solidity-mode-hook 'solidity-custom-line-length)
+
 (provide 'init-solidity)
 
 ;;; init-solidity.el ends here