toc: format the bintree map also

This also gets formatted in Go 1.20, so we need to make sure we run it
through go/format to avoid unnecessary diffs.

testdata/assets/bindata.go

@@ -1267,11 +1267,13 @@ const AssetDebug = false
 // directory embedded in the file by go-bindata.
 // For example if you run go-bindata on data/... and data contains the
 // following hierarchy:
-//     data/
-//       foo.txt
-//       img/
-//         a.png
-//         b.png
+//
+//	data/
+//	  foo.txt
+//	  img/
+//	    a.png
+//	    b.png
+//
 // then AssetDir("data") would return []string{"foo.txt", "img"},
 // AssetDir("data/img") would return []string{"a.png", "b.png"},
 // AssetDir("foo.txt") and AssetDir("notexist") would return an error, and
@@ -1306,8 +1308,8 @@ type bintree struct {
 var _bintree = &bintree{nil, map[string]*bintree{
 	"testdata": {nil, map[string]*bintree{
 		"benchmark": {nil, map[string]*bintree{
-			"0.jpg": {testdataBenchmark0Jpg, map[string]*bintree{}},
-			"1.jpg": {testdataBenchmark1Jpg, map[string]*bintree{}},
+			"0.jpg":  {testdataBenchmark0Jpg, map[string]*bintree{}},
+			"1.jpg":  {testdataBenchmark1Jpg, map[string]*bintree{}},
 			"10.jpg": {testdataBenchmark10Jpg, map[string]*bintree{}},
 			"11.jpg": {testdataBenchmark11Jpg, map[string]*bintree{}},
 			"12.jpg": {testdataBenchmark12Jpg, map[string]*bintree{}},
@@ -1318,7 +1320,7 @@ var _bintree = &bintree{nil, map[string]*bintree{
 			"17.jpg": {testdataBenchmark17Jpg, map[string]*bintree{}},
 			"18.jpg": {testdataBenchmark18Jpg, map[string]*bintree{}},
 			"19.jpg": {testdataBenchmark19Jpg, map[string]*bintree{}},
-			"2.jpg": {testdataBenchmark2Jpg, map[string]*bintree{}},
+			"2.jpg":  {testdataBenchmark2Jpg, map[string]*bintree{}},
 			"20.jpg": {testdataBenchmark20Jpg, map[string]*bintree{}},
 			"21.jpg": {testdataBenchmark21Jpg, map[string]*bintree{}},
 			"22.jpg": {testdataBenchmark22Jpg, map[string]*bintree{}},
@@ -1329,7 +1331,7 @@ var _bintree = &bintree{nil, map[string]*bintree{
 			"27.jpg": {testdataBenchmark27Jpg, map[string]*bintree{}},
 			"28.jpg": {testdataBenchmark28Jpg, map[string]*bintree{}},
 			"29.jpg": {testdataBenchmark29Jpg, map[string]*bintree{}},
-			"3.jpg": {testdataBenchmark3Jpg, map[string]*bintree{}},
+			"3.jpg":  {testdataBenchmark3Jpg, map[string]*bintree{}},
 			"30.jpg": {testdataBenchmark30Jpg, map[string]*bintree{}},
 			"31.jpg": {testdataBenchmark31Jpg, map[string]*bintree{}},
 			"32.jpg": {testdataBenchmark32Jpg, map[string]*bintree{}},
@@ -1340,7 +1342,7 @@ var _bintree = &bintree{nil, map[string]*bintree{
 			"37.jpg": {testdataBenchmark37Jpg, map[string]*bintree{}},
 			"38.jpg": {testdataBenchmark38Jpg, map[string]*bintree{}},
 			"39.jpg": {testdataBenchmark39Jpg, map[string]*bintree{}},
-			"4.jpg": {testdataBenchmark4Jpg, map[string]*bintree{}},
+			"4.jpg":  {testdataBenchmark4Jpg, map[string]*bintree{}},
 			"40.jpg": {testdataBenchmark40Jpg, map[string]*bintree{}},
 			"41.jpg": {testdataBenchmark41Jpg, map[string]*bintree{}},
 			"42.jpg": {testdataBenchmark42Jpg, map[string]*bintree{}},
@@ -1351,11 +1353,11 @@ var _bintree = &bintree{nil, map[string]*bintree{
 			"47.jpg": {testdataBenchmark47Jpg, map[string]*bintree{}},
 			"48.jpg": {testdataBenchmark48Jpg, map[string]*bintree{}},
 			"49.jpg": {testdataBenchmark49Jpg, map[string]*bintree{}},
-			"5.jpg": {testdataBenchmark5Jpg, map[string]*bintree{}},
-			"6.jpg": {testdataBenchmark6Jpg, map[string]*bintree{}},
-			"7.jpg": {testdataBenchmark7Jpg, map[string]*bintree{}},
-			"8.jpg": {testdataBenchmark8Jpg, map[string]*bintree{}},
-			"9.jpg": {testdataBenchmark9Jpg, map[string]*bintree{}},
+			"5.jpg":  {testdataBenchmark5Jpg, map[string]*bintree{}},
+			"6.jpg":  {testdataBenchmark6Jpg, map[string]*bintree{}},
+			"7.jpg":  {testdataBenchmark7Jpg, map[string]*bintree{}},
+			"8.jpg":  {testdataBenchmark8Jpg, map[string]*bintree{}},
+			"9.jpg":  {testdataBenchmark9Jpg, map[string]*bintree{}},
 		}},
 	}},
 }}

toc.go

@@ -109,7 +109,8 @@ var _bintree = `))
 }
 
 func writeTOCTree(w io.Writer, toc []Asset) error {
-	_, err := w.Write([]byte(`// AssetDir returns the file names below a certain
+	innerBuf := new(strings.Builder)
+	_, err := innerBuf.Write([]byte(`// AssetDir returns the file names below a certain
 // directory embedded in the file by go-bindata.
 // For example if you run go-bindata on data/... and data contains the
 // following hierarchy:
@@ -155,7 +156,15 @@ func AssetDir(name string) ([]string, error) {
 		pathList := strings.Split(toc[i].Name, "/")
 		tree.Add(pathList, toc[i])
 	}
-	return tree.WriteAsGoMap(w)
+	if err := tree.WriteAsGoMap(innerBuf); err != nil {
+		return err
+	}
+	fmted, err := format.Source([]byte(innerBuf.String()))
+	if err != nil {
+		return err
+	}
+	_, err = w.Write(fmted)
+	return err
 }
 
 // writeTOC writes the table of contents file.