Improve previous interpreter-mode-alist change

* lisp/files.el (interpreter-mode-alist): Remove \\` \\' parts.
(set-auto-mode): Don't regexp-quote elements.

* lisp/progmodes/python.el (interpreter-mode-alist): Remove \\` \\'.

* lisp/progmodes/cc-mode.el (interpreter-mode-alist):
* lisp/progmodes/ruby-mode.el (interpreter-mode-alist):
Revert previous change.

* etc/NEWS: Update.

1 files changed, 3 insertions, 5 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 929c86a7ba6..a5da8eaa893 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -616,11 +616,9 @@ Formerly it returned a list (-1 LOW USEC PSEC), but this was ambiguous
 in the presence of files with negative time stamps.
 
 ** The cars of the elements in `interpreter-mode-alist' are now treated
-as regexps rather than literal strings.  For the time being, any
-element whose car does not start with "\\" is still treated as a
-literal string, so this change should not cause any incompatibilities
-if you have code that just adds elements to the list, only if you are
-actually using interpreter-mode-alist for something.
+as regexps rather than literal strings.  Technically this is an
+incompatible change, but unless you are using interpreter-mode-alist
+for something (not just adding elements to it), it ought not to affect you.
 
 
 * Lisp Changes in Emacs 24.4