OPNSense/src b3a1d37sbin/fsck_ffs dir.c fsck_ffs.8, sys/ufs/ufs ufs_lookup.c dir.h

Fix kernel stack disclosure in UFS/FFS.

Approved by:    so
Security:       FreeBSD-SA-19:10.ufs
Security:       CVE-2019-5601
DeltaFile
+92-17sbin/fsck_ffs/dir.c
+24-12sys/ufs/ufs/ufs_lookup.c
+4-6sys/ufs/ufs/dir.h
+5-2sbin/fsck_ffs/fsck_ffs.8
+5-1sbin/fsck_ffs/main.c
+1-0sbin/fsck_ffs/globs.c
+1-0sbin/fsck_ffs/fsck.h
+132-387 files

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