Merge pull request #9089 from SirishaGuduru/bugfix15603

doc: Modification for "TEST S3 ACCESS" section  in "INSTALL CEPH OBJECT GATEWAY" page

Reviewed-by: Abhishek Lekshmanan <abhishek@suse.com>
Reviewed-by: Yehuda  Sadeh <yehuda@redhat.com>

doc/install/install-ceph-gateway.rst

@@ -524,7 +524,7 @@ Execute the following steps:
 
     bucket = conn.create_bucket('my-new-bucket')
         for bucket in conn.get_all_buckets():
-                print "{name}".format(
+                print "{name} {created}".format(
                         name = bucket.name,
                         created = bucket.creation_date,
      )