editorial revert of a change, remove trailing whitespace

Now the regular expression is back to what it was and align with how it is in
other languages. Also it aligns with the commented description of the regular
expression.

elisp.html.markdown

@@ -305,7 +305,7 @@ filename: learn-emacs-lisp.el
 (defun boldify-names ()
     (switch-to-buffer-other-window "*test*")
     (goto-char (point-min))
-    (while (re-search-forward "Bonjour \\([^!]+\\)!" nil 't)
+    (while (re-search-forward "Bonjour \\(.+\\)!" nil 't)
       (add-text-properties (match-beginning 1)
                            (match-end 1)
                            (list 'face 'bold)))
@@ -318,7 +318,7 @@ filename: learn-emacs-lisp.el
 ;; The regular expression is "Bonjour \\(.+\\)!" and it reads:
 ;; the string "Bonjour ", and
 ;; a group of            | this is the \\( ... \\) construct
-;;   any character not ! | this is the [^!]
+;;   any character       | this is the .
 ;;   possibly repeated   | this is the +
 ;; and the "!" string.