Move shebang

Change-Id: I13f7de98775ac837cc348ed0ae21403d88f57349
diff --git a/library/xostosca.py b/library/xostosca.py
index badfe74..4724395 100644
--- a/library/xostosca.py
+++ b/library/xostosca.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python
 
 # Copyright 2017-present Open Networking Foundation
 #
@@ -13,9 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
-#!/usr/bin/python
-
 import json
 import os
 import requests