Fix up default format string in man page and code comments

We're actually using %s, not %>s, since we don't support >.

Thanks to Kai for patch
Fixes: #999

bin/varnishncsa/varnishncsa.c

@@ -31,7 +31,7 @@
  * Obtain log data from the shared memory log, order it by session ID, and
  * display it in Apache / NCSA combined log format:
  *
- *	%h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-agent}i"
+ *	%h %l %u %t "%r" %s %b "%{Referer}i" "%{User-agent}i"
  *
  * where the fields are defined as follows:
  *

doc/sphinx/reference/varnishncsa.rst

@@ -52,7 +52,7 @@ The following options are available:
 -F format   Specify the log format used. If no format is specified the  
    	    default log format is used. Currently it is:
 
-            %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-agent}i"
+            %h %l %u %t "%r" %s %b "%{Referer}i" "%{User-agent}i"
 
 	    Supported formatters are: