cvsserver: Correct inetd.conf example in asciidoc documentation

While the given example worked, it made us look rather
incompetent. Give the correct reason why one needs the
more complex syntax and change the example to reflect
that.

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-cvsserver.txt

@@ -46,11 +46,13 @@ INSTALLATION
    cvspserver stream tcp nowait nobody git-cvsserver pserver
 
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-Note: In some cases, you need to pass the 'pserver' argument twice for
-git-cvsserver to see it. So the line would look like
+Note: Some inetd servers let you specify the name of the executable
+independently of the value of argv[0] (i.e. the name the program assumes
+it was executed with). In this case the correct line in /etc/inetd.conf
+looks like
 
 ------
-   cvspserver stream tcp nowait nobody git-cvsserver pserver pserver
+   cvspserver stream tcp nowait nobody /usr/bin/git-cvsserver git-cvsserver pserver
 
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 No special setup is needed for SSH access, other than having GIT tools