bpo-30436: Add missing space in importlib.util.find_spec() error message (GH-7385)

(cherry picked from commit fffeb6f3)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Lib/importlib/util.py

@@ -96,7 +96,7 @@ def find_spec(name, package=None):
                 parent_path = parent.__path__
             except AttributeError as e:
                 raise ModuleNotFoundError(
-                    f"__path__ attribute not found on {parent_name!r}"
+                    f"__path__ attribute not found on {parent_name!r} "
                     f"while trying to find {fullname!r}", name=fullname) from e
         else:
             parent_path = None