[3.10] Fix typos in the Lib directory (GH-28775) (GH-28804)

Fix typos in the Lib directory as identified by codespell.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>.
(cherry picked from commit 745c9d9dfc1ad6fdfdf1d07420c6273ff67fa5be)

Co-authored-by: Christian Clauss <cclauss@me.com>
diff --git a/Lib/test/test_dtrace.py b/Lib/test/test_dtrace.py
index 1db73cc..3957077 100644
--- a/Lib/test/test_dtrace.py
+++ b/Lib/test/test_dtrace.py
@@ -34,7 +34,7 @@ def normalize_trace_output(output):
         return "\n".join(result)
     except (IndexError, ValueError):
         raise AssertionError(
-            "tracer produced unparseable output:\n{}".format(output)
+            "tracer produced unparsable output:\n{}".format(output)
         )