Pathnames with backslash

[Fifer, Eric]

There was a change in the behavior of pathnames beginning
with the Apr-13 snapshot.  Now, it seems that anything with
a backslash in it is considered a Win32 path:

  $ cygpath -w '/cygdrive/c\cygnus'
  \cygdrive\c\cygnus

  $ cygpath -w '/cygdrive/c/cygnus'
  c:\cygnus

Before Apr-13 these produced the same results.

I had been assuming that slash and backslash were interchangeable
in Cygwin.  Is this an intentional/desirable change?

Thanks,

Eric Fifer