fix: coding style and file format for all example.

eBook/examples/chapter_12/gzipped.go

@@ -1,35 +1,35 @@
-// gzipped.go
-package main
-
-import (
-	"fmt"
-	"bufio"
-	"os"
-	"compress/gzip"
-)
-
-func main() {
-	fName := "MyFile.gz"
-	var r *bufio.Reader
-	fi, err := os.Open(fName)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%v, Can't open %s: error: %s\n", os.Args[0], fName,
-			err)
-		os.Exit(1)
-	}
-	fz, err := gzip.NewReader(fi)
-	if err != nil {
-		r = bufio.NewReader(fi)
-	} else {
-		r = bufio.NewReader(fz)
-	}
-
-	for {
-		line, err := r.ReadString('\n')
-		if err != nil {
-			fmt.Println("Done reading file")
-			os.Exit(0)
-		}
-		fmt.Println(line)
-	}
-}
+// gzipped.go
+package main
+
+import (
+	"bufio"
+	"compress/gzip"
+	"fmt"
+	"os"
+)
+
+func main() {
+	fName := "MyFile.gz"
+	var r *bufio.Reader
+	fi, err := os.Open(fName)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v, Can't open %s: error: %s\n", os.Args[0], fName,
+			err)
+		os.Exit(1)
+	}
+	fz, err := gzip.NewReader(fi)
+	if err != nil {
+		r = bufio.NewReader(fi)
+	} else {
+		r = bufio.NewReader(fz)
+	}
+
+	for {
+		line, err := r.ReadString('\n')
+		if err != nil {
+			fmt.Println("Done reading file")
+			os.Exit(0)
+		}
+		fmt.Println(line)
+	}
+}