Better error msg for 3-arg pow with a float argument.
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index adeaa9e..beb35e9 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -481,7 +481,7 @@
 
 	if ((PyObject *)z != Py_None) {
 		PyErr_SetString(PyExc_TypeError, "pow() 3rd argument not "
-			"allowed unless all other arguments are integers");
+			"allowed unless all arguments are integers");
 		return NULL;
 	}