Change spec for binary_data_in_non_binary_mode to make it clear what is going on.
Change spec for binary_data_in_non_binary_mode to make it clear what
is going on.

fakefs/fakefs,pivotal-cf-experimental/fakefs,defunkt/fakefs,onehub/fakefs,1234-/fakefs,bquorning/fakefs,deployable/fakefs,dekz/fakefs,vhl/fakefs,marxarelli/fakefs,anthonyryan1/fakefs