Fix typo in a comment (noticed by Terry Reedy)
diff --git a/Lib/test/test_cmd_line_script.py b/Lib/test/test_cmd_line_script.py
index 8b6083e..17dfbc2 100644
--- a/Lib/test/test_cmd_line_script.py
+++ b/Lib/test/test_cmd_line_script.py
@@ -146,7 +146,7 @@
def test_stdin_loader(self):
# Unfortunately, there's no way to automatically test the fully
# interactive REPL, since that code path only gets executed when
- # stdin in an interactive tty.
+ # stdin is an interactive tty.
p = spawn_python()
try:
p.stdin.write(b"print(__loader__)\n")