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/fcntlmodule.c b/Modules/fcntlmodule.c
index 9d8b587..988d942 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -21,7 +21,7 @@
     int fd = PyObject_AsFileDescriptor(object);
 
     if (fd < 0)
-    return 0;
+        return 0;
     *target = fd;
     return 1;
 }