Output elapsed time with S3 upload

codecov/__init__.py

@@ -1146,6 +1146,7 @@ def main(*argv, **kwargs):
                         )
                         s3.raise_for_status()
                         assert s3.status_code == 200
+                        write('    Uploading to S3 took %s' % s3.elapsed)
                         write("    " + result)
                         success = True