type: Fixed FromString encoding for ASCII.

- We were appending a newline rather than NUL.

type.go

@@ -757,7 +757,7 @@ func (tt TagType) FromString(valueString string) (value interface{}, err error)
     if tt.tagType == TypeByte {
         return []byte(valueString), nil
     } else if tt.tagType == TypeAscii {
-        return fmt.Sprintf("%s\n", valueString), nil
+        return fmt.Sprintf("%s\000", valueString), nil
     } else if tt.tagType == TypeShort {
         n, err := strconv.ParseUint(valueString, 10, 16)
         log.PanicIf(err)

type_test.go

@@ -215,7 +215,7 @@ func TestTagType_FromString_Ascii(t *testing.T) {
     value, err := tt.FromString("abc")
     log.PanicIf(err)
 
-    if reflect.DeepEqual(value, "abc\n") != true {
+    if reflect.DeepEqual(value, "abc\000") != true {
         t.Fatalf("ASCII value not correct: [%s]", value)
     }
 }