Re: [PATCH v2 04/10] t/lib-gpg: fix setup of GNUPGHOME in MinGW

> In "t/lib-gpg.sh" we set up the "GNUPGHOME" environment variable to
> point to a test-specific directory. This is done by using "$PWD/gpghome"
> as value, where "$PWD" is the current test's trash directory.
>
> This is broken for MinGW though because "$PWD" will use Windows-style
> paths that contain drive letters. What we really want in this context is
> a Unix-style path, which we can get by using `$(pwd)` instead. It is
> somewhat puzzling that nobody ever hit this issue, but it may easily be
> that nobody ever tests on Windows with GnuPG installed, which would make
> us skip those tests.