Silence install-info warning:
install-info: menu item `Speech Dispatcher cs' already exists, for file `speechd-cs'

--- doc/speech-dispatcher-cs.texi.orig	Sat Apr 25 21:31:34 2015
+++ doc/speech-dispatcher-cs.texi	Sat Apr 25 21:31:38 2015
@@ -18,7 +18,7 @@
 @dircategory Development
 
 @direntry
-* Speech Dispatcher cs: (speechd-cs).     Speech Dispatcher (in Czech).
+* Speech Dispatcher cs: (speech-dispatcher-cs).     Speech Dispatcher (in Czech).
 @end direntry
 
 @titlepage