Re: Fixing numerous `message' bugs..

[Richard Stallman]

    (message 
            (if foo
                    nil
                    (if bar "abc"
                            (concat "def" filename))))

I think the right fix for that is

   (if foo (message nil)
     (message "%s" (if bar "abc" (concat "def" filename))))

or

   (if foo (message nil)
     (message (if bar "abc" "def%s")
               filename))

I think either of those is clearer than the original code, and would
be cleaner than the fix using the proposed `msg' function.