[Support] Build fix for Haiku when checking for a local filesystem

Haiku does not expose information about local versus remote mounts, so just
return false, like Cygwin.

Patch by Niels Sascha Reedijk.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337389 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed