Issue13726 - Fix the ambiguous -S flag in regrtest. It is -o/--slow for printing the 10 slowest test.
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index c3d2a2b..0b93b52 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -28,7 +28,7 @@
-W/--verbose3 -- display test output on failure
-d/--debug -- print traceback for failed tests
-q/--quiet -- no output unless one or more tests fail
--S/--slow -- print the slowest 10 tests
+-o/--slow -- print the slowest 10 tests
--header -- print header with interpreter info
Selecting tests
@@ -312,7 +312,7 @@
start = a
elif o in ('-s', '--single'):
single = True
- elif o in ('-S', '--slow'):
+ elif o in ('-o', '--slow'):
print_slow = True
elif o in ('-r', '--randomize'):
randomize = True