Tell the user if it will upload a draft

Change-Id: Ie004ec9d61603f3f618c47597947b82c59f2839c

subcmds/upload.py

@@ -198,7 +198,8 @@ Gerrit Code Review:  http://code.google.com/p/gerrit/
       commit_list = branch.commits
 
       destination = opt.dest_branch or project.dest_branch or project.revisionExpr
-      print('Upload project %s/ to remote branch %s:' % (project.relpath, destination))
+      print('Upload project %s/ to remote branch %s%s:' %
+            (project.relpath, destination, ' (draft)' if opt.draft else ''))
       print('  branch %s (%2d commit%s, %s):' % (
                     name,
                     len(commit_list),