bug#23151: 25.1.50; Emacs should have a convenient command for saving unchanged buffers

[Drew Adams]

> So it is `C-u C-x C-w ENTER'. Or, if you are using Ido: `C-u C-x C-w
> C-j'. Other completion packages might require their own variations.
> Considering that `x' and `w' are typed with the same finger on Qwerty
> keyboards, it is not the most convenient sequence.

`x' and `s' are also typed with the same finger.  But I agree
that hitting `C-u' and `RET' (or `C-j') is additional work.