bpo-31462: Remove trailing whitespaces. (#3564)

diff --git a/Objects/cellobject.c b/Objects/cellobject.c
index 3f6389f..8f16f07 100644
--- a/Objects/cellobject.c
+++ b/Objects/cellobject.c
@@ -151,7 +151,7 @@
 }
 
 static PyGetSetDef cell_getsetlist[] = {
-    {"cell_contents", (getter)cell_get_contents, 
+    {"cell_contents", (getter)cell_get_contents,
                       (setter)cell_set_contents, NULL},
     {NULL} /* sentinel */
 };
diff --git a/Objects/setobject.c b/Objects/setobject.c
index 8772e58..cd5d2dd 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -23,7 +23,7 @@
 
    Unlike the dictionary implementation, the lookkey function can return
    NULL if the rich comparison returns an error.
-   
+
    Use cases for sets differ considerably from dictionaries where looked-up
    keys are more likely to be present.  In contrast, sets are primarily
    about membership testing where the presence of an element is not known in