Description of problem:
nfs.addr-namelookup help needs to be updated, the default value is off but the help says it is "on" in the last sentence.

Option: nfs.addr-namelookup
Default Value: (null)
Description: Users have the option of turning off name lookup for incoming client connections using this option. In some setups, the name server can take too long to reply to DNS queries resulting in timeouts of mount requests. Use this option to turn off name lookups during address authentication. Note, turning this off will prevent you from using hostnames in rpc-auth.addr.* filters. By default,  name lookup is on.

Version-Release number of selected component (if applicable):
glusterfs 3.3.0qa18 built on Dec 29 2011 01:49:17


How reproducible:

easily

Steps to Reproduce:
1.gluster volume set help
2.search for "nfs.addr-namelookup"
3.read the help
  
Actual results:
the status for default is on "By default,  name lookup is on."

Expected results:
"By default,  name lookup is off."

Additional info: