* keytab.c: (krb5_ktkdb_get_entry): Incoming principal is const

    * keytab.c: (krb5_ktkdb_get_entry): Incoming principal is const

        * kdb_dbm.c (krb5_dbm_db_get_principal, krb5_dbm_db_delete_principal):
                Incoming principal is const.

        * kdb_xdr.c (krb5_dbe_update_mod_princ_data, krb5_encode_princ_dbkey):
                Incoming principal is const.

        * kdb_db2.h (krb5_db2_db_get_principal): Change prototype to const
                principal.

        * kdb_db2.c (krb5_db2_db_get_principal, krb5_db2_db_delete_principal):
                The search for principal is const.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@10192 dc483132-0cff-0310-8789-dd5450dbe970