go fmt

tilerenderer/renderer.go

@@ -3,6 +3,8 @@ package tilerenderer
 import (
 	"bytes"
 	"errors"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/sirupsen/logrus"
 	"image"
 	"image/draw"
 	"image/png"
@@ -14,8 +16,6 @@ import (
 	"mapserver/tiledb"
 	"strconv"
 	"time"
-	"github.com/sirupsen/logrus"
-	"github.com/prometheus/client_golang/prometheus"
 )
 
 type TileRenderer struct {
@@ -72,7 +72,7 @@ const (
 	SUB_IMG_SIZE = IMG_SIZE >> 1
 )
 
-func (tr *TileRenderer) Render(tc *coords.TileCoords) (error) {
+func (tr *TileRenderer) Render(tc *coords.TileCoords) error {
 	//No tile in db
 	_, err := tr.renderImage(tc, 2)