Comment 7 for bug 1317305

This was fixed correctly in gcc-4.8 (in utopic), but not in gcc-4.9:

  $ cat format-extra-args.c
  #include <stdio.h>

  /* printf extra arguments example */
  int main(void)
  {
        printf("%s\n", "argument 1", "argument 2");

        return 0;
  }
  $ gcc-4.9 --version
  gcc-4.9 (Ubuntu 4.9.0-4ubuntu4) 4.9.0
  Copyright (C) 2014 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  $ gcc-4.9 -O2 -o format-off format-extra-args.c -Wno-format
  format-extra-args.c: In function ‘main’:
  format-extra-args.c:12:2: warning: too many arguments for format [-Wformat-extra-args]
    printf("%s\n", "argument 1", "argument 2");
    ^

With the fixed version in gcc-4.8, the output should look like so

  $ gcc-4.8 --version
  gcc-4.8 (Ubuntu 4.8.2-23ubuntu1) 4.8.2
  Copyright (C) 2013 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  $ gcc-4.8 -O2 -o format-off format-extra-args.c -Wno-format
  $

gcc-4.9 still needs the attached patch applied.