rm(1): remove whiteouts when forcibly removing directoriesHEADmain

Commit 2ed053cde5 changed UFS' VOP_RMDIR() behavior to no longer
ignore whiteouts when determining whether a directory is empty,
unless explicitly requested by the caller.  However, this also
necessitates a change to rm(1) to avoid breaking the expected
behavior when forcibly removing directory hierarchies via `rm -fr`.
I neglected to make this follow-on change despite discussing it
in the review for the breaking commit (D45987).

Finally address the breakage by making `rm -fr` imply FTS_WHITEOUT
when rm(1) reads directory contents via fts_read(3).  While here,
also fix a logic error which produces a spurious 'No error' warning
message on stdout for each deleted whiteout.

Reported by:	csjp
Reviewed by:	csjp, kib, olce
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D53640

0 files changed, 0 insertions, 0 deletions