bug#13485: wrong warning for format ~!

[Daniel Llorens]

In 2.0.7

scheme@(guile-user)> (import (ice-9 format))
scheme@(guile-user)> (format #t "~!")
;;; <stdin>:2:0: warning: "~!": wrong number of `format' arguments: expected 1, 
got 0
$1 = #t
scheme@(guile-user)> (format #t "~!" 3)
$2 = #t
scheme@(guile-user)> (format #t "~!~a" 3 9)  
3$3 = #t
scheme@(guile-user)> (format #t "~a~!" 3 9)  
3$4 = #t
scheme@(guile-user)> (version)
$5 = "2.0.7.28-581f4"

So it doesn't take an argument, it only affects the warning.

Regards,

        Daniel