Fix docstring formatting

Author: sirikid

elixir-format.el

@@ -26,7 +26,7 @@
 (require 'ansi-color)
 
 (defcustom elixir-format-arguments nil
-  "Additional arguments to 'mix format'"
+  "Additional arguments to 'mix format'."
   :type '(repeat string)
   :group 'elixir
   :group 'elixir-format)

elixir-mode.el

@@ -520,7 +520,7 @@ just return nil."
         (forward-line 1)))))
 
 (defun elixir--docstring-p (&optional pos)
-  "Check to see if there is a docstring at pos."
+  "Check to see if there is a docstring at POS."
   (let ((pos (or pos (elixir-ppss-comment-or-string-start
                       (parse-partial-sexp (point-min) (point))))))
     (when pos

elixir-smie.el

@@ -219,7 +219,7 @@
            (looking-back elixir-smie--operator-regexp (- (point) 3) t))))
 
 (defun elixir-smie-current-line-contains-built-in-keyword-p ()
-  "Return non-nil if the current line contains built in keywords with a `.'"
+  "Return non-nil if the current line contains built in keywords with a \".\"."
   (save-excursion
     (beginning-of-line)
     (looking-at ".+\\.\\(case\\|try\\|if\\|rescue\\)")))
@@ -292,7 +292,7 @@
                  (not (looking-back ".+fn.+")))))))))
 
 (defun elixir-smie--same-line-as-parent (parent-pos child-pos)
-  "Return non-nil if `child-pos' is on same line as `parent-pos'."
+  "Return non-nil if CHILD-POS is on same line as PARENT-POS."
   (= (line-number-at-pos parent-pos) (line-number-at-pos child-pos)))
 
 (defun elixir-smie-forward-token ()
@@ -906,8 +906,7 @@
 Rules:
   1. If the previous line is empty, indent as the basic indentation
      at the beginning of the heredoc.
-  2. If the previous line is not empty, indent as the previous line.
-"
+  2. If the previous line is not empty, indent as the previous line."
   (if (eq major-mode 'elixir-mode)
       (if (elixir-smie--heredoc-at-current-point-p)
           (let ((indent