apply bandaid for go-rasterzen issue fapian#3

pkg/geojson2svg/geojson2svg.go

@@ -8,7 +8,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	_ "log"
+	"log"
 	"math"
 	"regexp"
 	"sort"
@@ -179,6 +179,15 @@ func (svg *SVG) points() [][]float64 {
 }
 
 func process(sf scaleFunc, w io.Writer, g *geojson.Geometry, attributes string) {
+
+     	// band-aid: https://github.com/whosonfirst/go-rasterzen/issues/3
+	// (20180615/thisisaaronland)
+
+     	if g == nil {
+		log.Println("BUNK GEOMETRY (process)")
+		return
+	}
+
 	switch {
 	case g.IsPoint():
 		drawPoint(sf, w, g.Point, attributes)
@@ -200,6 +209,15 @@ func process(sf scaleFunc, w io.Writer, g *geojson.Geometry, attributes string)
 }
 
 func collect(g *geojson.Geometry) (ps [][]float64) {
+
+     	// band-aid: https://github.com/whosonfirst/go-rasterzen/issues/3
+	// (20180615/thisisaaronland)
+
+     	if g == nil {
+		log.Println("BUNK GEOMETRY (collect)")
+		return
+	}
+
 	switch {
 	case g.IsPoint():
 		ps = append(ps, g.Point)