Drop -tt flag in runtest.py

Test runs launch Python with the -tt flag to error on
inconsistent tab usage. That flag is no longer part of
Python 3, though it is silently accepted and ignored
in cpython.  In PyPy3, it errors.  We have other ways
to detect such things now anyway, so just drop.

Signed-off-by: Mats Wichmann <mats@linux.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/runtest.py b/runtest.py
index 9ffe37410..eecf19d5a 100755
--- a/runtest.py
+++ b/runtest.py
@@ -797,7 +797,7 @@ tests_failing = 0
 def run_test(t, io_lock, run_async=True):
     global tests_completed, tests_passing, tests_failing
     header = ""
-    command_args = ['-tt']
+    command_args = []
     if debug:
         command_args.append(debug)
     command_args.append(t.path)