rename const file on bsd descendants to make go ignore its extension
diff --git a/const_darwin_openbsd.go b/const_bsds.go
similarity index 99%
rename from const_darwin_openbsd.go
rename to const_bsds.go
index b356a8d..28cd274 100644
--- a/const_darwin_openbsd.go
+++ b/const_bsds.go
@@ -10,6 +10,7 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
+
// +build darwin openbsd
package afero
