Re: Silent failure to add Windows-style paths in Cygwin Git

> [Resending as my initial attempt appears to have not made it to the
> list.  Apologies if this results in a double-post.]
>
> If I attempt to `git add` an extant file specified using a Windows-style
> path on Cygwin Git, this doesn't add the file, and produces no error
> message:
>
>     ...
>
> I wouldn't expect adding the file to actually succeed, but I would
> expect it to either succeed or produce an error, rather than silently
> failing.
>
> Experimentation shows I get the same behaviour for 'c:\tmp\file',
> 'c:/tmp/file' and 'subdir\file'.  I'm seeing this on v2.8.0; the
> downstream report says the same behaviour occurs on v2.7.4[0], and I've
> also seen what appears to be the same behaviour on a v2.0.5 build I
> produced to check.