generic/486: filter out irrelevant attrs

In some setup, there could be extra attrs printed, like selinux. They are breaking golden output and irrelevant for this test. So focus on the attr we are testing on to avoid false alarm. Print the output to .full for debug.

Signed-off-by Murphy Zhou <[email protected]>

---
 tests/generic/486 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

tests/generic/486 +3 -1

index ff115a07..ea571efe 100755
@@ -46,10 +46,12 @@ _scratch_mkfs >>$seqres.full 2>&1
 _scratch_mount >>$seqres.full 2>&1
 
 filter_attr_output() {
-	_filter_scratch | sed -e 's/has a [0-9]* byte value/has a NNNN byte value/g'
+	_filter_scratch | grep world | \
+		sed -e 's/has a [0-9]* byte value/has a NNNN byte value/g'
 }
 
 ./src/attr_replace_test $SCRATCH_MNT/hello
+$ATTR_PROG -l $SCRATCH_MNT/hello >>$seqres.full 2>&1
 $ATTR_PROG -l $SCRATCH_MNT/hello | filter_attr_output
 
 status=0

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2.21.0