Fixes:
WARNING: openstack-image-controller.bb: IMAGE_ROOTFS_EXTRA_SPACE:append
+= is not a recommended operator combination, please replace it.

Signed-off-by: Yi Zhao <yi.zhao@...>
---
.../recipes-extended/images/openstack-image-controller.bb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-openstack/recipes-extended/images/openstack-image-controller.bb b/meta-openstack/recipes-extended/images/openstack-image-controller.bb
index 7f41a08..96dc80c 100644
--- a/meta-openstack/recipes-extended/images/openstack-image-controller.bb
+++ b/meta-openstack/recipes-extended/images/openstack-image-controller.bb
@@ -24,5 +24,5 @@ inherit monitor

# Ensure extra space for guest images, and rabbit MQ has a hard coded
# check for 2G of free space, so we use 5G as a starting point.
-IMAGE_ROOTFS_EXTRA_SPACE:append += "+ 5000000"
+IMAGE_ROOTFS_EXTRA_SPACE:append = " + 5000000"

--
2.25.1