test.support.SaveSignals: fix typo (GH-7448)

an => and

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 1015dd9af202728e37d051484e2f8df72dee13ea..a3a42cd69d0eebd8b263b915fbecfd3206b578a5 100644 (file)
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -2821,7 +2821,7 @@ def fd_count():
 
 class SaveSignals:
     """
-    Save an restore signal handlers.
+    Save and restore signal handlers.
 
     This class is only able to save/restore signal handlers registered
     by the Python signal module: see bpo-13285 for "external" signal