nfsn Rearrange zone property in example

Usually, the zone property is not the last property
in the configuration convention that is followed in
ddclient config examples.

Author: indrajitr

ddclient.conf.in

@@ -134,9 +134,9 @@ pid=@runstatedir@/ddclient.pid  # record PID in file.
 ## NearlyFreeSpeech.NET (nearlyfreespeech.net)
 ##
 # protocol=nfsn,                        \
+# zone=example.com,                     \
 # login=member-login,                   \
 # password=api-key                      \
-# zone=example.com                      \
 # example.com,subdomain.example.com
 
 ##