Fix documentation for xQueueTakeMutexRecursive (#943)

diff --git a/include/queue.h b/include/queue.h
index c6497b5..e892ed3 100644
--- a/include/queue.h
+++ b/include/queue.h
@@ -1522,8 +1522,8 @@
 #endif
 
 /*
- * For internal use only.  Use xSemaphoreTakeMutexRecursive() or
- * xSemaphoreGiveMutexRecursive() instead of calling these functions directly.
+ * For internal use only.  Use xSemaphoreTakeRecursive() or
+ * xSemaphoreGiveRecursive() instead of calling these functions directly.
  */
 BaseType_t xQueueTakeMutexRecursive( QueueHandle_t xMutex,
                                      TickType_t xTicksToWait ) PRIVILEGED_FUNCTION;