diff --git a/geojson/bbox.go b/geojson/bbox.go
index 947855b6..de4fdc0e 100644
--- a/geojson/bbox.go
+++ b/geojson/bbox.go
@@ -170,7 +170,7 @@ func (b BBox) Sparse(amount byte) []BBox {
 // BBoxesFromCenter calculates the bounding box surrounding a circle.
 func BBoxesFromCenter(lat, lon, meters float64) (outer BBox) {
 
-	outer.Min.Y, outer.Min.X, outer.Max.Y, outer.Max.X = BBoxBounds(lat, lon, meters)
+	outer.Min.Y, outer.Min.X, outer.Max.Y, outer.Max.X = BoundsFromCenter(lat, lon, meters)
 	if outer.Min.X == outer.Max.X {
 		switch outer.Min.X {
 		case -180:
@@ -183,7 +183,8 @@ func BBoxesFromCenter(lat, lon, meters float64) (outer BBox) {
 	return outer
 }
 
-func BBoxBounds(lat, lon, meters float64) (latMin, lonMin, latMax, lonMax float64) {
+// BoundsFromCenter calculates the bounding box surrounding a circle.
+func BoundsFromCenter(lat, lon, meters float64) (latMin, lonMin, latMax, lonMax float64) {
 
 	// see http://janmatuschek.de/LatitudeLongitudeBoundingCoordinates#Latitude
 	lat = toRadians(lat)
diff --git a/geojson/feature_test.go b/geojson/feature_test.go
index 168efdf6..1e68bcb2 100644
--- a/geojson/feature_test.go
+++ b/geojson/feature_test.go
@@ -116,7 +116,7 @@ func TestComplexFeature(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	o = o
+	_ = o
 }
 
 func TestIssue245(t *testing.T) {
diff --git a/geojson/object.go b/geojson/object.go
index 9278ea77..11fba864 100644
--- a/geojson/object.go
+++ b/geojson/object.go
@@ -31,11 +31,11 @@ var ( // json errors
 	fmtErrTypeIsUnknown              = "The type '%s' is unknown"
 	errInvalidTypeMember             = errors.New("Type member is invalid. Expecting a string")
 	errInvalidCoordinates            = errors.New("Coordinates member is invalid. Expecting an array")
-	errCoordinatesRequired           = errors.New("Coordinates member is required.")
+	errCoordinatesRequired           = errors.New("Coordinates member is required")
 	errInvalidGeometries             = errors.New("Geometries member is invalid. Expecting an array")
-	errGeometriesRequired            = errors.New("Geometries member is required.")
+	errGeometriesRequired            = errors.New("Geometries member is required")
 	errInvalidGeometryMember         = errors.New("Geometry member is invalid. Expecting an object")
-	errGeometryMemberRequired        = errors.New("Geometry member is required.")
+	errGeometryMemberRequired        = errors.New("Geometry member is required")
 	errInvalidFeaturesMember         = errors.New("Features member is invalid. Expecting an array")
 	errFeaturesMemberRequired        = errors.New("Features member is required")
 	errInvalidFeature                = errors.New("Invalid feature in collection")