Format string bug in deluser

[Emanuel Bronshtein]

Binary package hint: adduser

/usr/sbin/deluser have format string bug .

test case :
root@emanuel-desktop:/tmp# mkdir %999999999999999s
root@emanuel-desktop:/tmp# /tmp/%999999999999999s/../../usr/sbin/deluser Bug
Integer overflow in format string for prtf at /tmp/%999999999999999s/../../usr/sbin/deluser line 469.

The bug can be found at :
sub fail {
  my ($errorcode, $format, @args) = @_;
  printf STDERR "$0: $format",@args;
  exit $errorcode;
}

fix can be :
printf STDERR "%s: $format",$0,@args;

also same function exist in adduser script .