alertlog_pkg: printf to the alert log

CREATE OR REPLACE PACKAGE alertlog_pkg
IS
TYPE b
IS
  RECORD
  (
    author  VARCHAR2(100) DEFAULT 'Brian Fitzgerald',
    email   VARCHAR2(100) DEFAULT 'brian@exagriddba.com',
    twitter VARCHAR2(100) DEFAULT 'ExaGridDba' );

  PROCEDURE printf(
      p_format IN VARCHAR2,
      p_arg1   IN VARCHAR2 DEFAULT NULL,
      p_arg2   IN VARCHAR2 DEFAULT NULL,
      p_arg3   IN VARCHAR2 DEFAULT NULL,
      p_arg4   IN VARCHAR2 DEFAULT NULL,
      p_arg5   IN VARCHAR2 DEFAULT NULL,
      p_arg6   IN VARCHAR2 DEFAULT NULL,
      p_arg7   IN VARCHAR2 DEFAULT NULL,
      p_arg8   IN VARCHAR2 DEFAULT NULL,
      p_arg9   IN VARCHAR2 DEFAULT NULL);

END alertlog_pkg;
/
show errors

CREATE OR REPLACE PACKAGE BODY alertlog_pkg
IS
PROCEDURE printf(
    p_format IN VARCHAR2,
    p_arg1   IN VARCHAR2 DEFAULT NULL,
    p_arg2   IN VARCHAR2 DEFAULT NULL,
    p_arg3   IN VARCHAR2 DEFAULT NULL,
    p_arg4   IN VARCHAR2 DEFAULT NULL,
    p_arg5   IN VARCHAR2 DEFAULT NULL,
    p_arg6   IN VARCHAR2 DEFAULT NULL,
    p_arg7   IN VARCHAR2 DEFAULT NULL,
    p_arg8   IN VARCHAR2 DEFAULT NULL,
    p_arg9   IN VARCHAR2 DEFAULT NULL)
IS
BEGIN
        dbms_system.ksdwrt(2, out_pkg.sprintf( p_format, p_arg1, p_arg2, p_arg3, p_arg4, p_arg5, p_arg6, p_arg7, p_arg8, p_arg9));
END printf;

END alertlog_pkg;
/