redundant option to select c++ dialect options in 4.7.0?

[Mailaripillai, Kannan Jeganathan (STSD)]

Hi,

We have -std=c++0x and -std=c++11 options recognized by 4.7.0 compiler. 
Do we really need to accept (going forward) -std=c++0x when we have 
-std=c++11 option to select the c++11 standard?

Regards,
Kannan