Log Message:
openpam: update to 20170430

* patch-lib_libpam_openpam__constants.c:
  * comment it (make pkglint happy)
  * fix OPENPAM_MODULES_DIR (avoid openpam loading basesystem modules)
* remove "CONFIGURE_ARGS+=  --without-pam-su" (option not recognized \ 
by configure)
* change '_dep_' to 'dep' in builtin.mk (make pkglint happy)
* fix paths in manpages

Changes from upstream:
============================================================================
OpenPAM Resedacea                                               2017-04-30

  - BUGFIX: Reinstore the NULL check in pam_end(3) which was removed in
    OpenPAM Radula, as it breaks common error-handling constructs.

  - BUGFIX: Return PAM_SYMBOL_ERR instead of PAM_SYSTEM_ERR from the
    dispatcher when the required service function could not be found.

  - ENHANCE: Introduce the PAM_BAD_HANDLE error code for when pamh is
    NULL in API functions that have a NULL check.

  - ENHANCE: Introduce the PAM_BAD_ITEM, PAM_BAD_FEATURE and
    PAM_BAD_CONSTANT error codes for situations where we previously
    incorrectly used PAM_SYMBOL_ERR to denote that an invalid constant
    had been passed to an API function.

  - ENHANCE: Improve the RETURN VALUES section in API man pages,
    especially for functions that cannot fail, which were incorrectly
    documented as returning -1 on failure.
 ============================================================================
OpenPAM Radula                                                  2017-02-19

  - BUGFIX: Fix an inverted test which prevented pam_get_authtok(3) and
    pam_get_user(3) from using application-provided custom prompts.

  - BUGFIX: Plug a memory leak in pam_set_item(3).

  - BUGFIX: Plug a potential memory leak in openpam_readlinev(3).

  - BUGFIX: In openpam_readword(3), support line continuations within
    whitespace.

  - ENHANCE: Add a feature flag to control fallback to "other" policy.

  - ENHANCE: Add a pam_return(8) module which returns an arbitrary
    code specified in the module options.

  - ENHANCE: More and better unit tests.