Additionally provide a separate error for failure to create the
directory vs lack of write permissions on a pre-existing directory.
This also means we now consistently try to create any nonexistent *DEST
directories as needed before aborting with E_FS_PERMISSIONS. Previously
only $BUILDDIR received that kindness.
Fixes FS#43537
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
d8717a6a96