Re: [PATCH] t1091: don't grep for `strerror()` string

Martin Ågren [off-list ref] writes:

We grep for "File exists" in stderr of the failing `git sparse-checkout`
to make sure that it failed for the right reason. We expect the string
to show up there since we call `strerror(errno)` in
`unable_to_lock_message()` in lockfile.c.

On the NonStop platform, this fails because the error string is "File
already exists", which doesn't match our grepping.

Thanks for a quick fix.  I agree that looking for our own string
makes a lot more sense here.