Fix lazy % formatting and typo stdout / stderr

Author: Pierre-Sassoulas

astroid/manager.py

@@ -193,11 +193,15 @@ def ast_from_module_name(self, modname, context_file=None):
                     ) from e
                 if stderr.getvalue():
                     logger.error(
-                        f"Captured stderr from importing {modname}:\n{stdout.getvalue()}"
+                        "Captured stderr from importing %s:\n%s",
+                        modname,
+                        stderr.getvalue(),
                     )
                 if stdout.getvalue():
                     logger.info(
-                        f"Captured stdout from importing {modname}:\n{stdout.getvalue()}"
+                        "Captured stdout from importing %s:\n%s",
+                        modname,
+                        stdout.getvalue(),
                     )
 
                 return self.ast_from_module(module, modname)