tools: fix test.py --time

PR-URL: #27007
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Signed-off-by: Beth Griggs <Bethany.Griggs@uk.ibm.com>

tools/test.py

@@ -1511,7 +1511,7 @@ def FormatTime(d):
 
 
 def FormatTimedelta(td):
-  if hasattr(td.total, 'total_seconds'):
+  if hasattr(td, 'total_seconds'):
     d = td.total_seconds()
   else: # python2.6 compat
     d =  td.seconds + (td.microseconds / 10.0**6)