update PING-PONG doc format

diff --git a/doc/rrdcached.pod b/doc/rrdcached.pod
index 1c29c40158ceff96350ae06f0662055f074666ea..fad3607ed3042b41a5af8944eb1ce56821efa1c7 100644 (file)
--- a/doc/rrdcached.pod
+++ b/doc/rrdcached.pod
@@ -651,6 +651,7 @@ Example:
 PING-PONG, this is very usefull when using connection pool between user client and RRDCACHED.
 
 Example:
+
  0 PONG
 
 =item B<UPDATE> I<filename> I<values> [I<values> ...]