Removed trailing whitespace.

diff --git a/include/tapi.h b/include/tapi.h
index ffc8ef5..f64a911 100644
--- a/include/tapi.h
+++ b/include/tapi.h
@@ -1,6 +1,6 @@
 /*
  * TAPI definitions
- * 
+ *
  * Copyright (c) 1999 Andreas Mohr
  *
  * This library is free software; you can redistribute it and/or
@@ -359,7 +359,7 @@
     DWORD dwNumEntries;
     LINEFORWARD ForwardList[1];
 } LINEFORWARDLIST, *LPLINEFORWARDLIST;
-    
+
 typedef struct linegeneratetone_tag {
     DWORD dwFrequency;
     DWORD dwCadenceOn;