Subject: bug#21351: 25.0.50; Regression in `format'

From: Artur Malabarba <[email-masked]>
Date: Wed, 26 Aug 2015 14:27:55 +0100

Run the following from emacs -Q

(setq format-string #("mouse-1, RET: %s -- w: copy %s" 12 20 (face
minibuffer-prompt) 21 30 (face minibuffer-prompt)))
(format format-string "visit" "link")

It errors with: (args-out-of-range 24 36)

This didn't happen a few months ago.