ENH: fix typo

Modules/FindQt4.cmake

@@ -315,7 +315,7 @@ IF(QT4_QMAKE_FOUND)
     IF(${FLAG})
       SET(QT_INCLUDES ${QT_INCLUDES} "${${FLAG}}")
     ENDIF(${FLAG})
-  ENDMACRO(APPEND_INCLUDE_FLAG)
+  ENDMACRO(QT4_APPEND_INCLUDES_FLAG)
   QT4_APPEND_INCLUDES_FLAG(QT_QT3SUPPORT_INCLUDE_DIR)
   QT4_APPEND_INCLUDES_FLAG(QT_QTASSISTANT_INCLUDE_DIR)
   QT4_APPEND_INCLUDES_FLAG(QT_QTDESIGNER_INCLUDE_DIR)