Use t.Errorf instead of t.Error+fmt.Sprintf

Author: marksamman

encoder_test.go

@@ -50,7 +50,7 @@ func TestEncodeSinglefileTorrentBencode(t *testing.T) {
 	res := string(Encode(dict))
 	expected := "d8:announce41:http://bttracker.debian.org:6969/announce7:comment35:\"Debian CD from cdimage.debian.org\"13:creation datei1391870037e9:httpseedsl85:http://cdimage.debian.org/cdimage/release/7.4.0/iso-cd/debian-7.4.0-amd64-netinst.iso85:http://cdimage.debian.org/cdimage/archive/7.4.0/iso-cd/debian-7.4.0-amd64-netinst.isoe4:infod6:lengthi232783872e4:name30:debian-7.4.0-amd64-netinst.iso12:piece lengthi262144e6:pieces0:ee"
 	if res != expected {
-		t.Error(fmt.Sprintf("expected %s\ngot %s", expected, res))
+		t.Errorf("expected %s\ngot %s", expected, res)
 	}
 }
 
@@ -85,7 +85,7 @@ func TestEncodeListOfInts(t *testing.T) {
 	expected += "i1e"
 	expected += "ee"
 	if res != expected {
-		t.Error(fmt.Sprintf("expected %s\ngot %s", expected, res))
+		t.Errorf("expected %s\ngot %s", expected, res)
 	}
 }