sync_rpms.py: Move __future__ import to head of file

To avoid python complaining:

      File "./sync_rpms.py", line 29
        from __future__ import print_function
    SyntaxError: from __future__ imports must occur at the beginning of the file

Change-Id: Iac0abfb428cdac203a7febf1e34ad1c1dbd5fdfd
Reviewed-on: http://review.couchbase.org/c/kv_engine/+/163653
Tested-by: Build Bot <[email protected]>
Reviewed-by: James H <[email protected]>

Author: daverigby

scripts/sync_rpms.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env python2.7
 
+from __future__ import print_function
+
 """
 Copyright 2020-Present Couchbase, Inc.
 
@@ -23,10 +25,8 @@
 Example usage:
 
     grep '^\(glibc\|libstdc++\)' couchbase.log | ./sync_rpms.py
-
 """
 
-from __future__ import print_function
 import fileinput
 import logging
 import os