--- a/contrib/perf-utils/perf-revlog-write-plot.py	Mon Jan 06 01:44:46 2025 -0500
+++ b/contrib/perf-utils/perf-revlog-write-plot.py	Tue Jan 07 17:28:46 2025 -0500
@@ -118,7 +118,7 @@
 
     if len(sys.argv) > 1:
         print('reading from %r' % sys.argv[1])
-        with open(sys.argv[1], 'r') as fp:
+        with open(sys.argv[1]) as fp:
             plot(json.load(fp), title=sys.argv[1])
     else:
         print('reading from stdin')