update the help for DIST_VERSIONS

Signed-off-by: Alfredo Deza <adeza@redhat.com>

diff --git a/ceph/config/definitions/ceph.yml b/ceph/config/definitions/ceph.yml
index 321ae830c401f4be4235d7c7f29df86181c2d927..3cff3a6b554046ee1b7f67c8e0b6f83af128cda9 100644 (file)
--- a/ceph/config/definitions/ceph.yml
+++ b/ceph/config/definitions/ceph.yml
@@ -71,7 +71,7 @@ Defaults to un-checked"
 
       - string:
           name: DIST_VERSIONS
-          description: "Populates the `DIST` environment variable so that it can dynamically alter the Matrix axis"
+          description: "Populates the `DIST` environment variable so that it can dynamically alter the Matrix axis, multiple values should be space-separated."
           default: "jessie trusty xenial centos7"
 
     builders: