bzip2recover: Fix use after free issue with outFile.

bzip2recover.c (main): Make sure to set outFile to NULL when done.

This was reported as CVE-2016-3189 and found in multiple distributions.
https://seclists.org/oss-sec/2016/q2/568

Some more analysis can be found in:
https://bugzilla.redhat.com/show_bug.cgi?id=1319648
1 file changed