Set c-basic-offset to 4

Author: tsuu32

solidity-mode.el

@@ -552,7 +552,7 @@ Cursor must be at the function's name. Does not currently work for constructors
  (set (make-local-variable 'comment-multi-line) t)
  (set (make-local-variable 'comment-line-break-function)
  'c-indent-new-comment-line)
-
+ (set (make-local-variable 'c-basic-offset) 4)
 
  (when solidity-mode-disable-c-mode-hook
  (set (make-local-variable 'c-mode-hook) nil))