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, 4 insertions, 4 deletions

diff --git a/doc/progs/sum.go b/doc/progs/sum.go
index 1194230f8..f087ca3e5 100644
--- a/doc/progs/sum.go
+++ b/doc/progs/sum.go
@@ -6,16 +6,16 @@ package main
 
 import "fmt"
 
-func sum(a []int) int {	// returns an int
+func sum(a []int) int {   // returns an int
 	s := 0;
 	for i := 0; i < len(a); i++ {
-		s += a[i];
+		s += a[i]
 	}
-	return s;
+	return s
 }
 
 
 func main() {
-	s := sum(&[3]int{1, 2, 3});	// a slice of the array is passed to sum
+	s := sum(&[3]int{1,2,3});  // a slice of the array is passed to sum
 	fmt.Print(s, "\n");
 }