bpo-33582: Remove duplicate space in inspect.formatargspec() deprecation warning (GH-7655)

diff --git a/Lib/inspect.py b/Lib/inspect.py
index 238a368..7175186 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -1220,7 +1220,7 @@
     from warnings import warn
 
     warn("`formatargspec` is deprecated since Python 3.5. Use `signature` and "
-         " the `Signature` object directly",
+         "the `Signature` object directly",
          DeprecationWarning,
          stacklevel=2)