Inconsistent none cipher behavior

[Chris Rapier]

Using stock OpenSSH 4.7 I found different behavior when trying to 
specify the use of the 'none' cipher depending on the command line 
option nomenclature. This is under linux 2.6.19-web100

using -ocipher=none
[root at delta openssh-4.7p1-hpnv19]# /home/rapier/ssh47/bin/scp -S 
/home/rapier/ssh47/bin/ssh -ocipher=none -P 2222 ~rapier/2gb 
rapier at localhost:/dev/null
rapier at localhost's password:
2gb 
       3%   74MB  32.7MB/s   01:00 ETA

using -cnone
[root at delta openssh-4.7p1-hpnv19]# /home/rapier/ssh47/bin/scp -S 
/home/rapier/ssh47/bin/ssh -cnone -P 2222 ~rapier/2gb 
rapier at localhost:/dev/null
No valid ciphers for protocol version 2 given, using defaults.
rapier at localhost's password:
2gb 
       1%   33MB  32.7MB/s   01:01 ETA

The difference being, of course, the warning given. In both cases the 
behaviour is the same and results in a fall back to the default cipher.

Should this be made consistent?

Chris Rapier