encoding/gob: address go vet report

Use Fatalf for formatting directive rather than plain Fatal.

Change-Id: Iebd30cd6326890e9501746113a6d97480949e3d2
Reviewed-on: https://go-review.googlesource.com/2161
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/encoding/gob/encoder_test.go b/src/encoding/gob/encoder_test.go
index 0ea4c0ec8e5f479c5eff8d973353d03ea08d30ae..4af7195209f48aa21c798f3ae6317f78ddf9cc0d 100644 (file)
--- a/src/encoding/gob/encoder_test.go
+++ b/src/encoding/gob/encoder_test.go
@@ -951,6 +951,6 @@ func TestErrorForHugeSlice(t *testing.T) {
                t.Fatal("decode: no error")
        }
        if !strings.Contains(err.Error(), "slice too big") {
-               t.Fatal("decode: expected slice too big error, got %s", err.Error())
+               t.Fatalf("decode: expected slice too big error, got %s", err.Error())
        }
 }