Remove Spare drives line from details for external metadata

Arrays with external metadata do not have spare disks directly
assigned to volumes; spare disks belong to containers and are
moved to arrays when the array is degraded/reshaping.
Thus, the display of zero spare disks in volume details is
incorrect and can be confusing.

Signed-off-by: Oleksandr Shchirskyi <oleksandr.shchirskyi@linux.intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/Detail.c b/Detail.c
index cd26fb0f..ad56344f 100644
--- a/Detail.c
+++ b/Detail.c
@@ -548,7 +548,8 @@ int Detail(char *dev, struct context *c)
 			       array.working_disks);
 		if (array.raid_disks) {
 			printf("    Failed Devices : %d\n", array.failed_disks);
-			printf("     Spare Devices : %d\n", array.spare_disks);
+			if (!external)
+				printf("     Spare Devices : %d\n", array.spare_disks);
 		}
 		printf("\n");
 		if (array.level == 5) {