Automated g4 rollback of changelist 35383.

*** Reason for rollback ***

roll back the changes to the tutorial programs (only) since they
break the automated processing used to create the tutorial.

*** Original change description ***

apply gofmt to the LGTM-marked files from 34501
that have not changed since I applied gofmt.

R=rsc
DELTA=139  (0 added, 44 deleted, 95 changed)
OCL=35670
CL=35670

1 files changed, 6 insertions, 6 deletions

diff --git a/doc/progs/echo.go b/doc/progs/echo.go
index e5cd01600..3ddb4f83e 100644
--- a/doc/progs/echo.go
+++ b/doc/progs/echo.go
@@ -12,21 +12,21 @@ import (
 var n_flag = flag.Bool("n", false, "don't print final newline")
 
 const (
-	kSpace		= " ";
-	kNewline	= "\n";
+	kSpace = " ";
+	kNewline = "\n";
 )
 
 func main() {
-	flag.Parse();	// Scans the arg list and sets up flags
+	flag.Parse();   // Scans the arg list and sets up flags
 	var s string = "";
 	for i := 0; i < flag.NArg(); i++ {
 		if i > 0 {
-			s += kSpace;
+			s += kSpace
 		}
-		s += flag.Arg(i);
+		s += flag.Arg(i)
 	}
 	if !*n_flag {
-		s += kNewline;
+		s += kNewline
 	}
 	os.Stdout.WriteString(s);
 }