btrfs/006: fails with mixed-mode/small disks

as of now the script does not filter 0.00 size  in the
filesystem show output, which is the case in multi-disk
mixed-mode (that is default group type for small disks)

Signed-off-by: Anand Jain <Anand.Jain@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

common/filter

@@ -277,6 +277,12 @@ _filter_uuid()
 	fi
 }
 
+# In mixed group the added disks may have zero used size
+_filter_zero_size()
+{
+	sed -e "s/0\.00/<SIZE>/g"
+}
+
 # Filter out sizes like 6.14MB etc
 _filter_size()
 {

common/filter.btrfs

@@ -33,6 +33,7 @@ _filter_btrfs_filesystem_show()
 	# the uniq collapses all device lines into 1
 	_filter_uuid $UUID | _filter_scratch | _filter_scratch_pool | \
 	_filter_size | _filter_btrfs_version | _filter_devid | \
+	_filter_zero_size | \
 	sed -e "s/\(Total devices\) $NUMDEVS/\1 $NUM_SUBST/g" | \
 	uniq
 }