Issue #28139: Fix messed up indentation

Also update the classmethod and staticmethod doc strings and comments to
match the RST documentation.
diff --git a/Modules/timingmodule.c b/Modules/timingmodule.c
index a4e2c7e..c19dafd 100644
--- a/Modules/timingmodule.c
+++ b/Modules/timingmodule.c
@@ -56,7 +56,7 @@
 {
     if (PyErr_WarnPy3k("the timing module has been removed in "
                         "Python 3.0; use time.clock() instead", 2) < 0)
-    return;
+        return;
 
     (void)Py_InitModule("timing", timing_methods);
 }