[gnome-games/ricotz/vala] Don't use unsupported vala syntax

[Rico Tzschichholz <ricotz src gnome org>]

commit 8b460993272575711cc95b212bb63761caca5ae1
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Jul 2 15:37:00 2020 +0200

    Don't use unsupported vala syntax

 src/utils/unicode.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/utils/unicode.vala b/src/utils/unicode.vala
index 3cf7eaca..ad6ad1a0 100644
--- a/src/utils/unicode.vala
+++ b/src/utils/unicode.vala
@@ -27,7 +27,7 @@ namespace Games.Unicode {
        private Encoding parse_encoding (FileInputStream stream, out int bom_length) throws Error {
                stream.seek (0, SeekType.SET);
 
-               uint8[4] c = { 0, 0, 0, 0 };
+               uint8[] c = { 0, 0, 0, 0 };
                var size = stream.read (c);
                if (size < 4) {
                        bom_length = 0;