go: require { } around else block

R=gri, ken, r
CC=golang-dev
https://golang.org/cl/4721044
diff --git a/test/if.go b/test/if.go
index c1bb69d..18a6715 100644
--- a/test/if.go
+++ b/test/if.go
@@ -53,25 +53,28 @@
 	count = 0
 	if true {
 		count = count + 1
-	} else
+	} else {
 		count = count - 1
+	}
 	assertequal(count, 1, "if else true")
 
 	count = 0
 	if false {
 		count = count + 1
-	} else
+	} else {
 		count = count - 1
+	}
 	assertequal(count, -1, "if else false")
 
 	count = 0
-	if t:=1; false {
+	if t := 1; false {
 		count = count + 1
 		_ = t
 		t := 7
 		_ = t
-	} else
+	} else {
 		count = count - t
+	}
 	assertequal(count, -1, "if else false var")
 
 	count = 0
@@ -80,8 +83,9 @@
 		count = count + 1
 		t := 7
 		_ = t
-	} else
+	} else {
 		count = count - t
+	}
 	_ = t
 	assertequal(count, -1, "if else false var outside")
 }