https://bugzilla.redhat.com/show_bug.cgi?id=603942
Resolves: bug 603942
Bug Description:  null deref in _ger_parse_control() for subjectdn
Reviewed by: nkinder (Thanks!)
Branch: HEAD
Fix Description: Needed to pass &orig to ber_scanf 'a' instead of orig.  Also,check for NULL before doing strlen(orig).
Platforms tested: RHEL5 x86_64
Flag Day: no
Doc impact: no
(cherry picked from commit 82625ebf670c0f234e8bcbf18420e84b325e359e)