Align method definitions in _testcapi

This is how most of the table is formatted.
Fix a few lines around the one added.

Author: encukou

Modules/_testcapimodule.c

@@ -5683,9 +5683,10 @@ static PyMethodDef TestMethods[] = {
     {"PyBuffer_SizeFromFormat",  test_PyBuffer_SizeFromFormat, METH_VARARGS},
     {"test_buildvalue_N",       test_buildvalue_N,               METH_NOARGS},
     {"test_buildvalue_issue38913", test_buildvalue_issue38913,   METH_NOARGS},
-    {"get_args", get_args, METH_VARARGS},
-    {"test_get_statictype_slots", test_get_statictype_slots, METH_NOARGS},
-    {"get_kwargs", (PyCFunction)(void(*)(void))get_kwargs, METH_VARARGS|METH_KEYWORDS},
+    {"get_args",                get_args,                        METH_VARARGS},
+    {"test_get_statictype_slots", test_get_statictype_slots,     METH_NOARGS},
+    {"get_kwargs", (PyCFunction)(void(*)(void))get_kwargs,
+      METH_VARARGS|METH_KEYWORDS},
     {"getargs_tuple",           getargs_tuple,                   METH_VARARGS},
     {"getargs_keywords", (PyCFunction)(void(*)(void))getargs_keywords,
       METH_VARARGS|METH_KEYWORDS},