- Stop shadowing global "pamh" by a local variable in auth_pam(). - Stop calling pam_strerror() with NULL pamh. - Add a missing call to pam_end().
- Stop shadowing global "pamh" by a local variable in auth_pam().
- Stop calling pam_strerror() with NULL pamh.
- Add a missing call to pam_end().

PR:		bin/59776
Submitted by:	Nick Leuta <see PR for email>
MFC after:	2 weeks

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