Remove trailing whitespace.
diff --git a/Include/pycapsule.h b/Include/pycapsule.h
index 17a509e..eba82ee 100644
--- a/Include/pycapsule.h
+++ b/Include/pycapsule.h
@@ -2,12 +2,12 @@
 /* Capsule objects let you wrap a C "void *" pointer in a Python
    object.  They're a way of passing data through the Python interpreter
    without creating your own custom type.
- 
+
    Capsules are used for communication between extension modules.
    They provide a way for an extension module to export a C interface
    to other extension modules, so that extension modules can use the
    Python import mechanism to link to one another.
- 
+
    For more information, please see "c-api/capsule.html" in the
    documentation.
 */
@@ -26,7 +26,7 @@
 
 
 PyAPI_FUNC(PyObject *) PyCapsule_New(
-    void *pointer, 
+    void *pointer,
     const char *name,
     PyCapsule_Destructor destructor);